Complete Upper Receivers

Primary Weapons Systems 300 BLK MK1 MOD 2-M Complete Upper - 9.75"

Aero Precision M4E1 300BLK Complete Upper Receiver w/Atlas R-ONE Handguard - 8" Black

Maxim Defense MDX 508 5.56 Mil-Spec Complete Upper - 8.5"

SIG SAUER MCX Rattler 5.56 NATO Complete Upper - 5.5"

Dead Foot Arms AR-15 AR-SD 9MM Upper Assembly

Dead Foot Arms AR-15 AR-MP9 9MM Upper Assembly

Sig Sauer MCX Spear - LT 7.62X39 Complete Upper 11.5"

Sig Sauer MCX-SURG 5.56 NATO Suppressed Upper Receiver Group Upgrade Kit - 11.5"

Bravo Company MFG (BCM) MK2 AR-15 5.56 NATO Complete Upper Receiver Group - 18"

Noveske N4 Micro-Switchblock 5.56 NATO Complete Upper Reciever - 10.5"

Noveske GEN 4 Carry Handle Diplomat 300BLK Upper Receiver Group - 7.94"

Q LLC Sugar Weasel Upper 300BLK 13"

Noveske N4 Afghan Gen 4 5.56 NATO Complete Upper - 14.5" Black

Noveske N4 Recon Gen 4 5.56 NATO Complete Upper - 16" Black

Noveske AR-15 N4 5.56 NATO SPR Upper - 18"

Bravo Company MFG (BCM) MK2 Standard Complete Upper W/RAIDER-M13 Handguard