Upper Receivers/Conv Kits

Convert your Glock into a .22 or with an Advantage Arms conversion kit. Advantage Arms Glock Conversion Kit is Advantage Arms most accurate convers...

Advantage Arms Conversion Kit: Convert your 9mm/.40 S&W Glock down to 22lr so trips to the range dont break the bank. Or if you want to teach y...

Advantage Arms Conversion Kit: Convert your 9mm/.40 S&W Glock down to 22lr so trips to the range dont break the bank. Or if you want to teach y...

The durability, reliability and excellent build quality of 2A Armament uppers will provide years of service you can count on.Features : M-LOK Handg...

Advantage Arms Conversion Kit: Convert your 9mm/.40 S&W Glock down to 22lr so trips to the range dont break the bank. Or if you want to teach y...

Advantage Arms Conversion Kit: Convert your 9mm/.40 S&W Glock down to 22lr so trips to the range dont break the bank. Or if you want to teach y...

The MK1 MOD 1-M line features the PWS long stroke piston system. Internally, this line offers the tried and true system that PWS owners have grown ...

The PWS MK1 MOD 2-M line features the PWS long stroke piston system. While the internals remain the same as other PWS lines, the MK1 MOD 2-M offers...

When accuracy, perfection, and reliability matters, ODIN Works Billet Upper will give you a distinct advantage. Designed without a forward assist a...

Convert your XD into a .22 or with an Advantage Arms conversion kit. Advantage Arms XD Conversion Kit is Advantage Arms most accurate conversion ki...

The Charles Daly AR .410 Upper allows any AR-15 to be converted to a .410 shotgun. The CD .410 Upper features a 19in barrel, chambered in 2.5in .41...

Advantage Arms Conversion Kit: Convert your 9mm/.40 S&W Glock down to 22lr so trips to the range dont break the bank. Or if you want to teach y...

LBE Unlimited is a leading producer of US Made gun parts and accessories, particularly for the AR-15 platform. Whether youre in the middle of an AR...

When accuracy, perfection, and reliability matters, ODIN Works Billet Upper will give you a distinct advantage. Designed without a forward assist a...

Convert your Glock into a .22 or with an Advantage Arms conversion kit. Advantage Arms Glock Conversion Kit is Advantage Arms most accurate convers...

The Tactical Solutions TSG-22(R) is a realistic-weight and accurate .22LR barrel and receiver conversion for GLOCK(R) models 17/22 and 19/23. The T...

HM Defenses mission is to advance AR15 / AR10 rifle technology to its highest level. They strive to create rifles that are more accurate, easier to...

This Forged 7075 T6 Aluminum Upper features an M-LOK compatible handguard, M4 feedramps, Melonite finished barrel and Hard Coat Anodizing.Features ...

Fn America Upper, 9mm, 4", Fns-9, Blued 67205-1Product Type: UpperFinish/Color: BluedFit: FNS-9Caliber: 9MM

Just swap this drop in conversion with the bolt carrier group from your 5.56/.223 chambered rifle and you will be ready to shoot .22LR. Ships with ...

Convert your Glock into a .22 or with an Advantage Arms conversion kit. Advantage Arms Glock Conversion Kit is Advantage Arms most accurate convers...

Bootleg Milspec Upper, Upper, Black, Ar15 Bp-u-msModel: Milspec UpperProduct Type: UpperFit: AR15

Troy Industries AR-15 A3 Upper Receivers are lightweight and ultra-low profile. Developed specifically for todays war fighter and Law Enforcement l...