Upper Receivers/Conv Kits

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

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...

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:...

Zro Delta Modulus Extended Conversion, 9mm, Black, Slide Assembly (8"), Dust Cover, Magwell 7105-0015-9990Model: Modulus Extended ConversionFinish/...

Spikes Tactical Generation 2, Billet, Upper, 223 Remington, 556nato, Black, Mil-spec Barrel Nut Sft52b2Model: Generation 2Product Type: UpperDescri...

Fn America Upper, 223 Rem/556nato, 20" Step Cut Barrel, Fits Ar15 20-100366

The HP 2-In-1 Conversion Kit Includes Extended 5-Inch Barrel for Increased Accuracy and HP Extended Magazine for Increased Comfort and Grip. Targe...

Complete Upper, Ar57lem, 5.7x28mm, 16" Lightweight Barrel, Black Finish, With Mlok Rail Ar57lem-ua

Windham Weaponry Upper, Src, 223 Rem/556nato, 16" M4 Barrel With Bayonet Lug And A2 Birdcage Flash Hider, Fits Ar Rifles, Chrome Lined, Flat Top, 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...

Zro Delta Modulus Deployment Conversion, 9mm, Black, Grooved Front Strap, Standard Backstrap W/ Beavertail, Enhanced Backstrap 7105-0016-9990Model:...

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

Primary Weapons Systems Mk116 Pro Upper, 223 Wylde, 556nato, 16.1" Barrel, Pws 15" Mlok Handguard, Radian Raptor Charging Handle, Black Finish, Dam...

Midwest Industries Upper, 223 Wylde, 16" Lightweight Barrel, Black, 15" Mlok Handguard, Fits Ar15, No Bcg Or Charging Handle, Blem (damaged Case) M...

The railed gas tube will fit all (stamped and milled receiver) AK rifles with a standard length gas tube. Length is adjustable for variation betwee...

Fn America Upper, 40 S&w, 4", Fns-40, Blued 67205-3Product Type: UpperFinish/Color: BluedFit: FNS-40Caliber: 40 S&W

Ke Arms Upper, Forged, 223 Rem/556nato, Black Finish, W/forward Assist And Dust Cover, M4 Feed Ramps And T-marked, Blem (oil Stain In Boxes) 1-50-0...

Advantage Arms Conversion Kit, 22lr, 4.49" Barrel, Fits Glock 17/22, Black Finish, 1-10rd Magazine, Includes Range Bag, Blem (water Damaged Packagi...

Advantage Arms Conversion Kit, 22lr, 4.02" Barrel, Fits Glock 19/23 Gen3, Black Finish, 1-10rd Magazine, Includes Range Bag, Blem (scratches And In...