Complete Uppers

With the advent of the USASOC URGI, that quintessentially American silhouette has changed forever. The Geissele Super Modular Rail MK 16 handguard, hammer forged barrel, and carbine gas system work in concert for a package that delivers measurable...

Geissele Automatics, Super Duty MOD1, Complete Upper Receiver, 556NATO, 11.5" Cold Hammer Forged Barrel, 1:7 Twist, HuxWrx Flash Hider-QD Muzzle Device, M-LOK Free Float Handguard, Geissele Airborn Charging Handle, Nanowepon Reliability Enhanced Bolt...

Daniel Defense M4A1 Complete URG 556NATO 14.5" Pinned (16" OAL) FSP RIS II  Carbine Length Gas System Surefire SF3P Flash Hider This Daniel Defense M4A1 FSP AR15 style Upper Receiver Group was built for customers wanting a firearm inspired by...

Geissele Automatics, URG-I, Near Clone, Complete Upper Receiver, 556NATO, 11.5" Barrel, 1:7 Twist, Pinned and Welded Surefire 4 Prong Flash Hider, Desert Dirt Color 10.5" SMR MK16 M-LOK Free Float Handguard, Desert Dirt Color Geissele Airborne Charging...

Geissele Automatics - URG-I - Near Clone Complete Upper Receiver - 14.5" P&W Surefire 4 Prong - 5.56 - 1:7 Twist - Desert Dirt Color SPECS: Mil-Spec M4 Upper Receiver Assembly Geissele Reliability Enhanced Bolt Carrier Group Geissele...

Super Duty MOD1 Complete Upper, 10.3", 5.56mm - Black  The Geissele Super Duty MOD1 Upper (Complete) represents the latest advancements in weapon technology exclusively from Geissele Automatics. This 10.3” complete upper is chambered in 5...

Super Duty MOD1 Complete Upper, 10.3", 5.56mm - DDC  The Geissele Super Duty MOD1 Upper (Complete) represents the latest advancements in weapon technology exclusively from Geissele Automatics. This 10.3” complete upper is chambered in 5.56mm...

Sons of Liberty Gun Works believes in Quality Mil-Spec or better parts. They believe there is no substitute for quality and that your gun should be built right the first time, ready for hard use right out of the box. They believe a quality, accurate and...

SIG MCX-SPEAR LT 9" AR CONVERSION KIT 300BLK-BLACK This complete kit will convert any MIL-SPEC AR-15/M4 Lower into the top-performing MCX-SPEAR LT. Included items: Complete 9" 300BLK upper assembly includes our removable 3-prong flash-hider ready to...

MCX-SPEAR LT 11.5 AR CONVERSION KIT 5.56 NATO-BLACK This complete kit will convert any MIL-SPEC AR-15/M4 Lower into the top-performing MCX-SPEAR LT. Included items: Complete 11.5" 5.56 NATO upper assembly includes our removable 3-prong flash-hider...

Sig Sauer MCX-SURG Suppressed Upper Receiver Group - Limited Run Engineered for elite performance and born from real-world special operations demands, the SIG SAUER MCX-SURG (Suppressed Upper Receiver Group) is a next-generation upgrade system built to...

DD4™ RIII™ UPPER RECEIVER GROUP - 23-191-20088-011 The DD4™ RIII™ Upper Receiver Group is built around a 16 inch Cold Hammer Forged Government Profile barrel, a GRIP-N-RIP Charging Handle, and our mid-length gas...