Konza Defender M-LOK 5.56 16" Rifle 1x7 FEATURES: 16" 4150 Nitride 1x7 5.56 Barrel T-Marked Upper with M4 Feed Ramps Steel Micro Gas Block, and Carbine Length Gas Tube 15" 7075 T6 Aluminum Free Float M-LOK Hand Guard A2 Muzzle Break BCG is an M16 Style Nitride QPQ Finish Charging Handle Mil-Spec 6 Position Mil-Spec Diameter Stock #2. To measure just where the round makes impact on the feed ramps, I did not use any sort of micrometer to measure. We have four combinations here: Thats receivers, bolts, and on down the list of the 100 or so parts that can make up an AR-15. If you aren't 110% comfortable with doing the job, and you do not have all the tools and equipment to do it properly, then have a smith do it for you. Then you can get a regular rifle barrel for the upper with no ramps. again, Thanks. Lol. Backing up a ton: Any and all AR-15 barrel extensions have feed ramps. The Mission of Cheaper Than Dirt! Seems counter intuitive to recommend an M4 cut upper, especially if the barrel Im looking at has the rifle feed ramp (not M4 cut). I don't have much to add re: feed ramps, but. However, if youre wanting to rebarrel a non-M4-cut upper with an M4 feed-ramp equipped barrel, or going the other direction: you have a new upper thats been relieved to fit with the M4 ramps, and a non-M4-cut barrel extension, and that wont work! I checked what I have now. I will check with compass lake. Interesting reading. Metal cases ammunition such as Wolf through an M4 clone? 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. Hasn't misfed yet, through initial break in up through 1k rounds, and that's mag length ammo. Somwhere in the 1990s I believe, Colt designed the M4 feed ramps, where they took some of the material out of the upper receiver, cut two little ramps in it and then cut the ramps in the barrel extention a little further forward. Related: If you are using a Ar rifle, best green laser sight is good choice for hunting. That is what I tell people when they try to convince me that they need a stainless barrel instead of chrome-moly. That's an important thing since without the feed ramps, issues can arise when receivers and barrel extensions are mismatched. Married pretty well with my Seekins machined lower. Don't forget read more information about it here! Product Description Surplus Colt 14.5" SOCOM, carbine length gas system barrel from Colt. Only took a few minutes. JavaScript is disabled. 4. They provide a lower, wider, and smoother entry for any round of ammo, whether its necessary or not. Press J to jump to the feed. Reddit and its partners use cookies and similar technologies to provide you with a better experience. 's blog. 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. i have an extra brand new M4 barrel extension ramp to replace a rifle ramp. It may not display this or other websites correctly. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Owning Best Ruger SR9c Accessories Can Change Your Life. I use it for hunting dogs only. Im an old vet, now retired and looking to build some ARs as a hobby to keep me doing something that I will enjoy. The barrel Throat is the second most critical component after angles and should be polished with utmost care. 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. 3. Personally, I would sell the rifle upper and buy an M4 upper - the cost will be small and you will end up with a more satisfactory end product. Is getting it as part of the upper better? Questions on how to install your new BA barrel? 410 stainless is also harder and more corrosion resistant than conventional 416 stainless found in other commercially available precision barrels. I've thought about it myself, and I'd like to see test results if any exist, displaying what reliability effect M4 ramps have on other barrel lengths. 308 m5 using m4 feed ramps, which I belive are for the smaller round like. Copyright 1996-2023 AR15.COM LLC. I like getting another Upper idea then you could end up with two rifles! My alternative plan is to do exactly as you describe. Rear side of a CZ-75B pistol barrel showing the (here dirty) feed ramp. 3. Man, its crazy how many of yall have absolutely no idea why you do what you do. Feed ramps being m4 or. The last is using the best and right ammo for the job. Its not a big deal but still an important thing to remember and understand. Add 3% to the total cost for credit card purchases. Any use of this content without express written consent is prohibited. Copyright 1996-2023 AR15.COM LLC. So like ORD says it is entirely 100% possible and plenty of people do it, but I would rather not do any work to this perfect barrel. So, an M4 feed ramp includes the barrel extension and the upper. I think you will find that the tip of the bullet clears the M4 cuts in the upper receiver by a wide margin. Snipers Hide is a community of Snipers of all kinds, focusing on long range shooting, accuracy, and ballistics. While I've got everything apart, I'm thinking I just want to put an M4 barrel extension on. 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. Both. So I'm thinking I ought to have M4 ramps in the gun because based on what I've read: Rifle receiver+M4 barrel = "OK" but not ideal. Some argue that, factually, its a step to enable a smoother feeding. Proper maintenance and lubrication. Higher pressure equte to parts (bcg, buffer, buffer spring, ROUNDS, etc) experiencing much higher wear/tear. The M4, and the CAR-15, before it have had similar problems like the ones you mentioned. And it appears that the bolt is slamming into the top of the bullet. Little polish. So there's a lot more going on with rounds bouncing up and down in the mags etc. The M4 Style Feed ramps And Barrel Extension Provide Consistent Feeding And The Matte Black Manganese Phosphate Finish resists External Corrosion And OxidationLength: 14.70"Model: AR-15Finish: Manganese PhosphateBarrel Type: Carbine LengthBarrel Features: Chrome-LinedManufacturer: FN Mfg Number: 20-100405Model: AR-15 . So I called. If this is your first visit, be sure to can the barrel extension be bought individualy? These units actually feature the NON-F-Marked (correct) front sight base. what I fear the most is having an m4 ramp upper and then getting a barrel with a rifle ramp. Not all mil-spec features advertised on the product information are the real mil-specs. If you have a bolt that you would like to use you are welcome to ship it to us for accurate headspace. 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. You can modify the upper, but bear in mind that the un-anodized aluminum surface will be very soft and prone to wear if your particular bullet hits it frequently. M16's fed pretty well before the M4 feed ramps were introduced. We want you, our readers, to be able to make informed decisions. "It will last 5k rounds instead of 4k. Looking For Bear Creek Arsenal Barrels Review? A forum community dedicated to drag racing drivers and enthusiasts. aaargh.. that's the setup I hate to see. Factory said its fine . It has 2 ramps cut into the receiver to help the rounds feed into the chamber. I should have taken my own advice for once. Anodized red parts. Some suggest taking a grinder to the extension area. The ramp angles are different and changing the profile of the extension doesn't make it something it isn't. But, as with anything else, this work can go too far. 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. I replaced the M4 feed ramp barrel with a monolithic feed ramp barrel and no more problems. *Must have a registered ARFCOM account to win. This is one time it's better to go a little too far than to leave an edge for the . My experience with ARs is all A-1s. From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm. If you have a m4 ramped upper but not barrel you can cause problems as there's a lip of steel barrel extension in the way that can cause feeding problems. 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. With the increased use of larger-diameter cased cartridges, the M4 feed ramps are proving their values when using them in those cartridges. By using the M4 feed ramps for your firearm, you could pick up an increased percentage of the rounds, and feeding reliability would be improved. Barrel, sight and trigger work on most pistols and shotguns. True, which is why they're not even needed in semi autos. First, the M4 barrel and non-M4 upper isnt likely to cause issues, but due to the relief cut on an M4-spec upper, there will be a gap that works like an edge that most definitely can snag the bullet and stub the round. I will attest that a rifle upper and a barrel with the M4 feedramps works just fine. is the m4 feedramp common in barrel extensions? EDIT: Okay, I understand now! Is it kosher to add M4 feed ramps to a standard upper to match an m4 ramped barrel? The manufacturer said they had sold hundreds of barrels with out problems reported. Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. The M4 cut extends down beyond the edge of the barrel extension (has a scalloped appearance), and a correspondingly deeper cut in an M4-spec upper receiver effectively extends the ramps downward (theyre lowered). For a better experience, please enable JavaScript in your browser before proceeding. M4 ramps help in feeding in for carbine in full auto. M4 feed ramps will extend the barrel extension and the upper receiver. AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types. It is milled out of 6061 T6. A4 Complete Upper Receiver - 7075 Forged A4 Flat Top Upper Receiver - M4 Feed Ramps Includes: - Add to Cart.

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