Complete Uppers

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 a variety of features exclusive to this line. Starting with patent pending PicLok technology on the free...

Primary Weapons System MK116 Mod 1-M Upper Receiver 7.62x39mm- 16" Barrel The MK116 MOD 1-M Upper equipped with the renowned PWS long-stroke piston system, maintaining the reliability that PWS owners have come to trust. This line features a free-float...

Daniel Defense - DD4 7.0 - URG - 11.5 FSP Barrel - 1/7 Twist - 5.56/.223 - Black The Contract Overrun upper receiver group is built for maximum maneuverability with its 11.5" Government-profile barrel and Carbine length gas system, ensuring...

This EPC-9 Complete Upper Receiver comes standard with our ATLAS R-ONE Handguard. The R-ONE handguards are designed with size and weight in mind, while still providing plenty of real-estate to accommodate any attachment needs the end user may have. Our...

The DD4 RIIIS AR15 style Upper Receiver Group is built around a 11.5 inch Cold Hammer Forged Government Profile barrel with a Daniel Defense Flash Suppressor, a GRIP-N-RIP Charging Handle, and their carbine length gas system. It features a 10.5 inch...

The Triarc Systems TSR-15 SPR Upper seeks to redefine what a factory SPR barreled assembly can be; incorporating the most functional component choices possible, Triarc System has invigorated the tried and true concept of a 16" suppressed 5.56 rifle...

This complete upper includes our new ATLAS R-ONE Handguard! The R-ONE line of handguards are designed with size and weight in mind, providing the perfect addition to your lightweight build. Our proprietary ATLAS attachment system is a durable and...

SIG SAUER MCX-SPEAR LT UPPER/CONVERSION. KIT 7.62 X 39MM Compatible w/any MIL-SPEC AR-15/M4 Compatible w/MCX, M400 & 516 Upgrade any M4/AR15 into an MCX-SPEAR LT. The MCX SPEAR LT developed for the SF community is the most advanced platform...

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...

This Aero Precision M4E1 Threaded upper receiver group comes completely assembled with 16” 5.56 barrel and the ATLAS S-ONE M-LOK handguard. This barreled upper receiver group does not include BCG or charging handle allowing you to choose your...

10.5” Gen 3 Shorty 300BLK CHF Complete Upper Barrel 10.5” 300BLK cold hammer forged with 1:7 twist Our chrome lined barrels are cold hammered forged and made with the material callouts and manufacturing process for the M249 Machine Gun...

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...