Upper Receivers/Conv Kits

The Non-Reciprocating Charging Handle (NRCH) assembly upgrade kit gives current FN SCAR Owners even more adaptability and modularity for their rifles with new, nonreciprocating, dual charging...

San Tan Tactical PILLAR(R) Truss Pockets For Increased Structural Rigidity. - Cut From A Single Billet Of 7075 -T651 Aerospace Grade Aluminum. - Shell Deflector - Machined In T Markings For Easy...

Convert your Glock into a .22 or with an Advantage Arms conversion kit. Advantage Arms Glock Conversion Kit is Advantage Arms most accurate conversion kit for Glock.Features :Adjustable sightsLast...

Manufactured with confidence and without compromise, the Super Duty MOD1 adds value to the platform while continuing the reputation for excellence. All of these technologies and advancements combine...

AR15 Assembled Upper Receiver. Forged from 7075-T6 aluminum, this assembled upper is precision machined to mil-spec M16/M4 specifications and features M4 feedramps.Features :Threaded Forward Assist...

Spikes complete upper assemblies will arrive to you inspected, tested, and ready to drop-in and go to work. Spikes maintains the same high standard of tolerances and attention to detail as the uppers...

The MK1 MOD 1-M line, revamped for 2018" features the PWS long stroke piston system. Internally, this line offers the tried and true system that PWS owners have grown to know and love. Featuring a...

The OOW 240P-SLR is a belt-fed, air cooled Rifle, capable of sustained and accurate fire while using a shorter and lighter barrel, M4 style collapsible stock, removable lightweight bipod and a...

The ARAK-21 is a gas piston actuated, complete upper receiver assembly designed to seamlessly interface with the standard AR-15 platform. The total extent of the interface is simply the take down...

Rock River Arms RRAGE 3G A4 carbine upper comes chambered in 5.56mm NATO. This extruded aluminum upper receiver comes with a port door and no forward assist. Additionally, this upper is equipped with...

This EPC-9 Complete Upper Receiver comes standard with the ATLAS S-ONE Handguard. The S-ONE handguards are designed with size and weight in mind, while still providing plenty of real-estate to...

The PWS MK1 MOD 2-M line, revamped for 2018" features the PWS long stroke piston system. While the internals remain the same as other PWS lines, the MK1 MOD 2-M offers a variety of features exclusive...

Advantage Arms Conversion Kit: Convert your 9mm/.40 S&W Glock down to 22lr so trips to the range dont break the bank. The MOD series is meant to fit Glock 19/23 Gen 5 and includes two 10 round...

Agency Arms was created in January of 2015 and created by weapons operators themselves interested more in the functionality than the visual appeal. Agency Arms is a Veteran and LEO owned...

Troy Industries AR-15 A4 Upper Receivers are lightweight and ultra-low profile. Developed specifically for todays war fighter and Law Enforcement led by Special Operations field requirements. The...

Spikes complete upper assemblies will arrive to you inspected, tested, and ready to drop-in and go to work. Spikes maintains the same high standard of tolerances and attention to detail as the uppers...

Rock River Arms complete Tactical Carbine upper is an A4 upper chambered in .458 SOCOM with a 16" chrome moly bull barrel and 1:14 twist. Additionally the upper comes with a complete bolt carrier...

The groundbreaking MCR (Mission Configurable Rifle) belt-fed upper receiver assembly is designed to interchange with standard AR/M4 type uppers and readily fits any MIL-Spec lower receiver without...

The EPC-9 upper receiver is the perfect addition to any AR9 build. Including a last round bolt hold open mechanism and compatible with most standard AR15 barrel nut and handguard combinations this...

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 a 10rd Magazine. For best performance use a round...