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...

Spikes Tacticals mission is simple, Spikes strives to build the highest quality products and offer them at the best possible price to the consumer...

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 ...

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 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...

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...

Sharps often gets asked which upper matches the best with Sharps receivers. Any mil-spec upper will work, that is the beauty of the platform ... b...

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

Daniel Defense Ddm4v7, Complete Upper, 223 Rem/556nato, 16" Cold Hammer Forged Barrel, 1:7 Twist, Black, Mlok, Blem (damaged Packaging) 23-128-0233...

Zro Delta Modulus Duty Conversion, 9mm, Black, Slide Assembly (7.5"), Dust Cover, Magwell 7105-0014-9990Model: Modulus Duty ConversionFinish/Color:...