What's the Difference Between AR-15 and AR-10. There is no reason for rifle feed ramps to exist. save. 5.56mm, 1 in 7 twist, 11.5in BBL, 5.5 in Muzzle break/ Expansion chamber. Makes one question if … Look at the picture above your post. The military M4 was originally a 16" barrel and has evolved into shorter barrels for some CQB. m4 is a generic military designation for a 14.5" barreled weapon with a collapsible stock and a burst of full auto trigger group. The M4 (since its military) also has select fire which is capable of full auto. You have probably identified the M4 rifle with the U.S military troops, while the AR-15 is commonly owned by millions of civilians within the U.S. Brief History. ARs have a maximum effective range of about 800 yards and beyond. Which one is right for you? M4 vs. AR-15 are very popular rifles within the U.S and the gun community. I'm getting an idea there might be two "revisions" of the same style stock, which once the M4 was introduced became known as an M4 … AR15Forum Fozzy: I’d go with the AK. One of the most obvious differences between the AR-10 and the AR-15 is the caliber. My current go to rifle is the Larue OBR - WayTooMuch Gear is spot on in pointing out the variability of the AR10 vs AR15 platforms. 7 7. Posted by. The above two rifles are very similar but also share differences. The original AR15 has a 20" barrel, whereas the civilian AR15 has a standard 16" barrel. AR-15 vs. M4. As others have said, the mechanical accuracy of the Mini-14 is going to be somewhat less than an AR-15 — especially if you’ve built the AR to be more accurate than stock M4 style setup — but unless you are seriously into rifle marksmanship you will never see the difference. Archived. 3 1 13. comments. The AR-10 utilizes the .308/7.62x51, while the AR-15 uses the .223/5.56 x 45 cartridge. I don't even have a rifle. hide. It was made for the then issued 55grn M193 Vietnam era bullet. Whats the diffrence between Aero AR-15 vs M4E1 lower Hey guys, I'm trying to build my 1st ar15 and decided to go with an aero lower to complment my BCM upper, I originally deiced to go with a reg ar15 Aero lower but I keep seeing builds that use the M4E1 lower, is the M4E1 better in anyway, what are the differences or does it really not matter? share. CAR-15. Is there a benefit of the M4E1 other than the appearance? All in all the AR15 is the M4 … I noticed that there are two offered, the M4E1 and the standard AR-15 version. I have been looking into Aero Stripped Upper Receivers. There is no such thing as rifle feed ramps on an upper. 3 years ago. M4E1 vs. Aero AR-15 Upper. The major differences between AR-15 and AK-47: AK-47s shoots 7.62x39mm. It was designed by Eugene Stoner and it is based on the Armalite AR-10 rifle. The difference between the M4 and the CAR-15. I'm just trying to understand the nomenclature. M4(A1) An A3 upper is a rifle upper with a flat top rail. AR15: The ArmaLite AR-15 is a selective-fire, 5.56×45mm, air-cooled, gas-operated, magazine-fed rifle, with a rotating bolt and straight-line recoil design. Like day and night, the AR-15 and AK-47 were designed for different purposes. The difference between the AR 15 and M4 is that the M4 has either a full-auto or burst fire mode whereas the AR-15 does not. M4E1 vs. Aero AR-15 Upper. If the rifle upper does not have feed ramps, why would an A3 upper have rifle feed ramps? ar15 generically refers to all civilian rifles that are similar fundamentally, but may differ dramatically There are also other minor differences such as attachments and barrel length, but these do not have any fundamental effect on the rifle. Full Auto, collapsible stock, A1 pattern receiver. If a manufacturer says "M4" and he also says "CAR," what is the difference? AKs have a maximum effective range of about 300 yards. 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