The tip of the cartridge rarely comes into contact with the upper receiver. The magazine lips cannot move, so with these larger diameter cartridges, the bullet tips down lower about the centerline of the bore (half of the diameter increase to be exact). . I'll probably build a pistol out of this one. - The Shooter's Log, 2012 SHOT Show Special Report: Del-Ton TRX Rifle and More! Other selections are available for upper, bolt and carrier, charging handle, handguards, flash hiders, and gas blocks. *Must have a registered ARFCOM account to win. But, as with anything else, this work can go too far. If I have a rifle ramp upper and get the barrel later and coincidentally will have an m4 ramp. I can probably get the upper reciever first. This space is for pictures of "retro" Stoner rifles and completed or partial retro AR-15 builds, as well as discussions about either. To conclude, the M4 feed ramps bring a lot of improvements to the AR-platform firearms. I would just make sure to order rifle upper with rifle barrel extension or M4 upper with M4 barrel extension. Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. Damaged Ak front end Barrel in Trunnion with or without sight bases. Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more. is the m4 feedramp common in barrel extensions? If you ever have an issue, then look at getting a correct barrel for the upper. Most work performed while-you-wait, evening and saturday appointments available. Metal cases ammunition such as Wolf through an M4 clone? However, an M4 barrel extension is dished more so the feed ramps could extend downward, and then an area within the upper is shaped to match. Costs about $40-50 to have the feed ramps reprofiled from what I can gather.
P2A PATRIOT 22" 223 Wylde 1/7 Rifle Length Melonite Fluted Heavy Bull No feed ramps. Create an account to follow your favorite communities and start taking part in conversations. I will attest that a rifle upper and a barrel with the M4 feedramps works just fine. Insert the barrel and sharpie the cut area, then use the right bit on a dremel.
FN AR-15 5.56X45mm Nato .
By accepting all cookies, you agree to our use of cookies to deliver and maintain our services and site, improve the quality of Reddit, personalize Reddit content and advertising, and measure the effectiveness of advertising. Given that most of us dont always have perfect access to truly genuine Mil-Spec, mil-standard parts (those actually used in issued fighting tools), were shopping based on a little part trust and a bigger part knowledge. After two months of back and forth, cleaned up the feed ramps. For instance I was looking at the BCM upper receiver, and it said it had M4 feed ramps machined into the upper. Thats an important thing since without the feed ramps, issues can arise when receivers and barrel extensions are mismatched. FN AR15 barrels are hammer forged using the same proprietary high-grade Chrome Moly Vanadium steel used in FN's venerable machinegun barrels produced to handle the punishment of . The trust part is accepting claims of USGI-spec parts actually being done to not only blueprint dimensions, but also made from the correct materials treated to the same processes. If I was concerned with precision, I would seek out parts from well-known gun makers and customizers Baer comes to mind, Hart barrels, etc etc. Mind shooting me a link where I can pick on a C marked A1 carry handle for $150? I cant advise on that one folks. 16" Pre-Ban M4 Profile Barrel Assembly CARBINE Gas System About Upper assembly comes completely head spaced and test fired.
FN AR-15 5.56 NATO 20" Hammer Forged Barrel - Black I've modified barrel/receivers even before M4 cuts came out and done some receivers when the barrels had cuts. Having been in military supply, I know that what the mil-spec means: it gets the minimum job done for thousands (millions) of parts/systems.
The last is using the best and right ammo for the job. There is a picture of the various options, hopefully another poster can link them. so it is better to have an upper reciever that's designed for non-m4 feed ramps since you can put in standard barrels right? Create an account to follow your favorite communities and start taking part in conversations. AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own. AR Tech Tip - Checking M4 Ramps for overhang School of the American Rifle 84.8K subscribers Subscribe 2.9K 90K views 2 years ago AR Tech Tip - Checking M4 Ramps for overhang Show more Show more. This 20" BCM barrel is machined from SS410 stainless steel. Looking for a black stripped A1 upper with non m4 feed ramps (just realized the upper I have wont work with my barrel). BEFORE YOU GO MODIFYING IT, check your headspace.I have a Gibbz upper in my junk drawer because the upper -- for some reason -- wouldn't allow a perfectly good bolt (as checked by Criterion) to headspace correctly on a Criterion barrel, with the bolt installed in the carrier. The extension is the part at the end of the barrel that fits inside the upper. well.. it's kinda hard to get stuff in this part of the world. Load a magazine with two or three rounds, lock the bolt group back on your rifle or carbine and insert the magazine. So, I had purchased a 458 upper. LanceRiley, Recommend using a gunsmith this route too if you are not comfortable. Factory said its fine . The barrel extension and the receiver both have to have the cuts. Guess what? By my estimates, the tip of the bullet first hits the barrel extension about 1/3 of the way up the respective feed ramp on the barrel extension. You are using an out of date browser. what I fear the most is having an m4 ramp upper and then getting a barrel with a rifle ramp. Being a Newbie AR owner ((Ive been an avid gun owner for nearly 50 years), I appreciate the information and visual aids that Im sure will be a big help in enjoying and using this gun platform. I can still use the combination. The barrel Throat is the second most critical component after angles and should be polished with utmost care. I think your mistaking that with adding ramps to the receiver. You need to match up barrels to receivers for optimum performance. Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. With a larger diameter case body sitting down in the magazine, the tip of the bullet sits lower in relation to the chamber/bore centerline than with a .223-size round. If you want precision, dont look to the mil-spec gun, look to the one that is popular in 3-gun competitions, at Thunder Ranch, etc. I have looked and looked and looked. The only other time it seems to help is if the mag is feeding the rounds with the bullet slightly angled lower than normal.
AR 15 16" .350 Legend Nitride M4 Profile Barrel 1:16 You can always buy a non-m4 extension and have the new barrel retimed and headspaced, but it will probably cost more than a new upper receiver. AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types. [ARCHIVED THREAD] - M4 feed ramp barrel in a non M4 ramp upper. Description Genuine 14.5" SOCOM, carbine length gas system barrel from Colt. I like getting another Upper idea then you could end up with two rifles! In case My barrel is rifle ramp it won't be so bad after all. Lol. Some gun owners believe that the M4 ramps can help for some of the larger-diameter cartridges in use. An upper without feed ramps can be used with a barrel that has them as the majority of the ramp is on the barrel extension. Finding the proper upper receiver is your best option.
Feed ramp - Wikipedia I think my question would be why rifle receiver+M4 barrel is just "ok" rather than "good", unless the point is that in a carbine-gas gun M4 ramps are just considered an improvement over no ramps. Polishing the edges of the chamber mouth to remove the edges of that chamfer will. Went back to the sellers website and found I was not the only one with problems. Barrels are Douglas 416 stainless steel with 1-7 twist with M4 feed ramps I guess it depends on what your relationship to the necessary shop activities is. I've shot a good deal of rounds through 20" A2's and I realize they run but you are describing issues that the M4 feed ramps alleviate, that would probably be good to reduce on A2's as well. upper recievers and barrels are hard to comeby. All Rights Reserved. Was sort of worried about how it would run with an 11.5" barrel and mismatched ramps, but it sounds like it should be good to go either way. This includes M4 feed ramps, barrel nut, front sight tower and sight post, and -28 threads for a muzzle device. I'd rather just pay the gunsmith to make it work than hunt down another barrel/upper if possible. this is the barrel designed and profiled for the Mark 12 Mod 0 uppers and rifles. If it's happening regularly, check the magazines you are using for serviceability. So, an M4 feed ramp includes the barrel extension and the upper. This includes M4 feed ramps, barrel nut, front sight tower and sight post, and -28 threads for a muzzle device. That puts the cartridge in a position where the extended feed ramp improves the breech-loading design. The upper is designed to have two levels of top rails for mounting of night vision in front of scopes. There is no way to make a carbine barrel extension out of a rifle barrel extension, period, full stop. M4 16", SBN, 1:7, 5.56 NATO Barrel Specifications: - Caliber: 5.56 NATO (.223 REM) - Gas Tube: Car Add to Cart. Thats true overall and good to keep in mind. Interesting reading. Is one better than the other? Thanks! Its also recommended you polish the ramps once youve achieved the appropriate angle.
which is basicallly an m16a1 cut down. The angle is going to be key, alot of people attempt to mimic the angle of the barrel feed ramps, this is incorrect. If your magazines are set up correctly, and the feed lip edges polished smooth, each round fed from the magazine will go directly into the chamber. I've seen several places say you just need a 1/8" chainsaw sharpening bit and a Dremel to fix it. Only took a few minutes. Check often for fit. Olympic Arms Upper receiver with rear sight assembly and forward assist and dust cover has M4 feed ramps $260 View attachment 1016575 View attachment 1016576 The difference between standard feed ramps and M4 ramps is easy to see. And that the M4s and M4A1s are issued M855 which has a slight difference in bullet shape vs. the older 55gr M193 BALL. All things being equal and having used both weapons extensively, Id rather have the feed Ramps. M4 Feed ramps on barrel extensions are a solid example. You want them to match. The M-16/M4 are great weapons. For a better experience, please enable JavaScript in your browser before proceeding. I've seen uppers with and without anodizing on M4 ramps . it seems to me to be about 50/50 with and without. They are better! They guide the bullet up and into the chamber. I have done the same, protect the Barrel extension with a layer of electrical tape and carefully file or Dremel the ramps into the aluminum receiver. In general, all you need to understand is that the M4 feed ramps include the barrel extension and upper receiver. I use it for hunting dogs only. Barrel is medium SPR profiled barrel, threaded with a 1/2-28 thread for the AE brakes and collar. I picked up a side charging upper from Sundevil last year. However Ive built numerous ar15 and lr308 rifles and pistols.
Should M4 feed ramps come with the barrel or upper? : r/ar15 - reddit The M4 receiver feed ramps are cut at a steeper angle and, as a result, extend down into the receiver wall. Come join the discussion about racing, builds, pro mods, hot rods, events, turbos, nitrous, superchargers, and more! are all barrels w/ m4 feed ramps?? All Rights Reserved. I was planning on using a Daniel Defense 14.5 pencil barrel, because like the C8 they are CHF, lightweight profile, and .750 at the FSB (And also because quality carbine pencil barrels with .625 gas blocks seem to be in short supplyor else I'd just build a 723 clone.) . For this test, I used a Colt upper with M4 feed ramps and a SOCOM heavy 14.5 barrel, just like what is used in the military.
M4 Feedramps - AR-15 Pro Barrel, sight and trigger work on most pistols and shotguns. I am glad to know that I need to look for changes in design and the differences in the A2 and A4 feed ramp / rails. If your mag catch is at Spec height, you should not have a problem with an M4 cut barrel in a rifle receiver. What's the difference? practical_man Its a miracle! My factory JP CTR-02 has the appearance of the bottom right picture in the post above, M4 barrel extension in a rifle receiver, and there is not a mark on the aluminum under the barrel extension.
Upper Receiver WITHOUT M4 Feed Ramp Cuts? - Sniper's Hide Forum Ar-15 Manufacturers Should Be Avoided: Which Should You Buy?
Feed Ramps -300BlkTalk However, its rare now to find an upper receiver or a ready-to-go barrel that doesnt have the M4 cuts. One new winner* is announced every week! http://www.ar15fornoobs.com/wp-content/uploads/feedramps.jpg. A feed ramp is a basic feature of many breech loading cartridge firearm designs.
What Are M4 Feed Ramps and What Is The Benefit Of It? - Adventure Footstep This is one time it's better to go a little too far than to leave an edge for the .
6.5 Grendel Type 2 | 16" Black Nitride | 1:8 Twist Carbine Length Gas This Kit is made to cut or polish the STEEL Feed Ramps on your Barrel Extension ONLY. The Fora platform includes forum software by XenForo.
Adding feedramps - M4Carbine.net You have a rifle barrel. The M4 ramps, if I am not mistaken, were originally made to help reduce malfunctions on the M4 carbine. You can run M4 cut barrels with rifle receivers, but not the other way around as it will create at catch that can hang up the bullets. So, what is the difference between M4 feed ramps and regular ones? Here you can see an upper with "rifle" feedramps. It gives a longer ramp that is less steep into the chamber. For use by barrel manufacturers. Bear Creek Arsenal Barrels - 6.5 Grendel Type 2 Barrel This Gorilla Machining AR-15 16" heavy Black Nitride 6.5 Grendel barrel has a Carbine length gas system with a 1:8 twist. BUT if you find someone to grind your feed ramps and they do a good job, post it up and let us know. BUT, I DO NOT TRUST MY LIFE TO THAT WEAPON. Caught a deal on a matched barrel and bolt. Questions on how to install your new BA barrel? The best case is to have both an upper and barrel that have the feed ramps. Thanks for explaining the feed ramp topic in a couple of different ways. No need to alter the upper. I got my help from this thread, and thank you again to ORD. Your previous content has been restored. In short, if you have a Dremmel you can do it yourself. The rifle-platform M16s dont use them. The A2's are pretty reliable guns, but trashed mags can cause them to have malfunctions also. Installing a Luth-AR Rifle Buffer Tube and an A2 Stock #1041. Well, over the course of 5,000 rounds at .40 a round, you spent two grand on ammo. Good call. You cannot paste images directly. The M4 was the first (allegedy) carbine length gas system. Does anyone have a follow up that confirms or denies my claim? Press J to jump to the feed. Shorter length equates to much higher pressure in the upper receiver. UPPER RECEIVER: AR-15 Mil-Spec Machined out of 7075-T6 Forged Aluminum, M4 Feed Ramps, Cerakoted Magpul Flat Dark Earth (FDE) Color with Forward Assist and Ejection Port Cover Installed BARREL: 22 inch, 223 Wylde Caliber, 4150 CMV, 1:7 Twist, Heavy Bull Barrel Profile, Straight Fluted, Melonite/Nitride Finish - made for us by Tactical Kinetics HAND It's not worth changing the barrel extension on an already finished barrel, getting the new barrel extension to line up correctly with the gas port will probably cost more in gunsmithing/machining fees than buying a new barrel.
AR-15 Feed Ramp Problems - School of the American Rifle Ideally both. You also repeated yourself. I recommend putting any AR-platform firearm together with a matched M4 barrel extension and upper receiver set, just because you can.
Do you need an M4 feed ramp on your AR? Here is some info. Married pretty well with my Seekins machined lower. Brevity matters. I replaced the M4 feed ramp barrel with a monolithic feed ramp barrel and no more problems. In this episode of Gun Stock Reviews, we look at the difference between M4 Ramps and the old standard ramps of the past. Press J to jump to the feed. Feeds flawlessly. M16's fed pretty well before the M4 feed ramps were introduced. Mind shooting me a link where I can pick on a C marked A1 carry handle for $150?
Making a non M4 feed ramp barrel work in an M4 feed ramp upper. My experience with ARs is all A-1s. By the time you made it work you spent more time, money, and effort than if you just bought a new barrel or upper. Any use of this content without express written consent is prohibited. Upper Receiver, A4, Flat Top, USGI, Numbered, AR-Stoner Upper Receiver Stripped AR-15 A3 Flat-Top Matte, Black River Tactical 16 Cold Hammer Forged Optimum Barrel Accuracy Evaluation. A4 Complete Upper Receiver - 7075 Forged A4 Flat Top Upper Receiver - M4 Feed Ramps Includes: - Add to Cart. The ramp angles are different and changing the profile of the extension doesn't make it something it isn't. I like all my guns to be reliable. Notice how the ramp starts on the barrel extension and not in the receiver. They aid in feeding the round into the chamber from the magazine more easily, which make uppers and barrel extension matched. However, I have seen more than a few basement gunsmith hackjobs using a dremel, some Jack Daniels/liquid courage, and an unsteady hand that have made a total, unrepairable mess of the job. May 17, 2008 in The Armorer. Not saying a really good gunsmith cant do it, just that theres a bit of an involved process. - The Shooter's Log, 2012 SHOT Show Special Report: Daniel Defense DDM4 V5 in .300 Blackout and a Factory SBR - The Shooter's Log, 2012 SHOT Show Special Report: SOG Armory Predator Rifle - The Shooter's Log, Surefire's 100-Round MAG5-100: The Highest Capacity AR-15 Magazine - The Shooter's Log, Throwback Thursday: Taurus Judge Range Report, ATI Milsport SGA 410 All the Advantages of an AR in .410, Ruger SR1911 LW Commander The Lightweight .45 ACP, Rifle Hack: Sighting for 100 Yards at a Distance of 25 Yards, Throwback Thursday: All About Bullet Grain. 's blog. which is bad combo. 3. FFL Fax: 866-721-8691. This is why you can use a barrel with an extension with M4 feedramps with a receiver that does not have feedramps, but you cannot use a receiver with M4 feedramps with a barrel with an extension with rifle feedramps. The rifle receiver, doesn't have ramps on the receiver, they are only cut into the barrel. 1 is a standard and the other for use with m4 feed ramp barrels. 3. Go slow and you'll be done in no time. Don't forget read more information about it here! M4 ramps help in feeding in for carbine in full auto. Either way is good and both types work great with semi auto only guns. M4 can better explain their benefit, although they help with more reliable feeding. The upper I want to rebarrel is modified for Service Rifle competition so it's not quite as cheap as buying another $89 upper from Aero. Contents: 1 Diamond Burr (For Colt 2 Stage Ramps) 1 Cut Lube (For Diamond Burr) 1 Bullet Stone (For Reshaping . can the barrel extension be bought individualy? To measure just where the round makes impact on the feed ramps, I did not use any sort of micrometer to measure. Your link has been automatically embedded. Related: If you are using a Ar rifle, best green laser sight is good choice for hunting. Feed ramps on barrel extensions are a good example. M4 feed ramps are not an original design, they were designed for the M4 In fact, the . That is what I tell people when they try to convince me that they need a stainless barrel instead of chrome-moly.
Konza Defender M-LOK 5.56 16" Rifle - $399.99 | gun.deals Reach in through the ejection port and slide the on deck cartridge about 1/4 inch forward and observe the tip of the bullet in relationship to the barrel extension. Clear editor. First of Im not a gunsmith or firearms professional. All comments are held for moderation and will appear after approval. There's a 7 degree difference between standard and M4 ramps. We're a little past that point as I already own both the barrel and receiver, both of which cant easily be replaced or swapped for a decent price. I suggest you get a rifle receiver. Don't ever put non M4 ramped barrel on a M4 ramped upper receiver. You need to match up barrels to receivers for optimum performance.
Adding M4 feedramps to A1/C7 upper - M4Carbine.net How to Clone the M16A2 Rifle - The New Rifleman Some argue that, factually, its a step to enable a smoother feeding. I don't quite trust myself to give it a go, but if that's all there is to it I'm hoping they can do it for a reasonable price.
BCM 16" M4 Carbine Upper Receiver Group | BravoCompanyUSA Colt LE6920SOCOM M4 Carbine 5.56 16.1 Barrel SOCOM Sight 30-rd Its fine to use an M4 Barrel with a non-N4 (rifle) upper but if you have the barrel already is much simpler to just buy a M-4 upper and just replace the upper the barrel is harder to build..I have even cut ramps on a rifle upper and it really wasent needed That is before I knew better.Then I guncoted the ramps before I found out about Aluminum Black treatment. *Must have a registered ARFCOM account to win.