Standard

Spike's Tactical Complete Upper Receiver, 223 Remington/5.56 NATO, 14.5" Barrel (16" OAL with Pinned Brake), Mid-length Gas System, Fits AR Rifles, Black, Flat Top Receiver, No Sights, 12" CRR Quad Rail, Dynacomp Muzzle Brake, No Magazine STU5050-CQ2D

Spike's Tactical Complete Upper Receiver, 223 Remington/5.56 NATO, 16" FN Hammer Forged Barrel, 1:7 Twist, Fits AR Rifles, Mid-length Gas System, Front Sight Post, Black Finish STU5435-MLS

San Tan Tactical Upper, 223 Remington/5.56 NATO, Black STT-15-LT-PILLAR-UPPER

San Tan Tactical STT-15, Upper, 223 Remington/5.56 NATO, Black STT-PILLAR-1

Steyr Arms 9MM Conversion Kit, 9MM, 16" Threaded Barrel, 1/2X28 Thread Pitch, Trigger Pack, 9MM Bolt Carrier Group, 28 Round Waffle Style Magazine, Fits Steyr AUG (Not Compatible with NATO AUG) US1253010715

Savage Arms Single Shot Adapter, Integral Latch, Fits Savage Short Action Axis, Axis II, 110 Ultralite & 110 Apex, Polymer Construction, Black 56306

Savage Arms Single Shot Adapter, Integral Latch, Fits Savage Long Action Axis, Axis II, 110 Ultralite & 110 Apex, Polymer Construction, Black 56308

TROY Industries Picatinny Rail Top Gas Tube, Fits AK-47, 5", Black Finish SRAI-AK1-T0BT-00

VLTOR Weapon Systems MUR, Upper, Hammer Forged, Fits AR15/M16, Modular Upper Receiver, includes Shell Deflector and Forward Assist MUR-1A

Wilson Combat Forged AR-15 Stripped Upper, Anodized Finish TR-UPPER

WMD Guns Complete Upper Receiver, 350 Legend, 16" Barrel, Low Profile Gas Block, Fits AR-15 Upper Receiver, 15" M-LOK Free Float Handguard, NiB-X Finish, Black Receiver, Nickel Handguard, Muzzle Brake 1-ANOUA350LEGEND

WMD Guns Complete Upper Assembly, 300 Blackout, Match-Grade 16" Barrel, 15" M-LOK Free Float Handguard, NiB-X Finish, Nickel, Muzzle Compensator 1-NIBXUA300BO-16

WMD Guns Upper Receiver, 5.56 NATO, A3/A4 with M4 Feed Ramps, NiB-X Coating, Nickel, Stripped 1-NIBXUF

Yankee Hill Machine Co A3 Upper Receiver, Fits AR15, 7075-T6 Aluminum, Anodized Finish, Black YHM-100

Yankee Hill Machine Co Stripped A3 Upper Receiver, For AR15, Black Finish YHM-110

Barrett MRAD Barrel Conversion Kit, 300 PRC, 26" Barrel, 10 Rounds, 1 Magazine 18431

Barrett MRAD Barrel Conversion Kit, 308 Winchester, 24" Fluted Barrel, 10Rd Magazine 18527

Barrett MRAD Barrel Conversion Kit, 6.5 Creedmoor, 24" Fluted Barrel, 10Rd Magazine 18529

Barrett MRAD Barrel Conversion Kit, 338LAP, 26, 10Rd 19419

Barrett MRAD Barrel Conversion Kit, 300 Norma Magnum, 26" Barrel, 10 Rounds, 1 Magazine 19421

Barrett MK22 Barrel Conversion Kit, 7.62 NATO, 20", Fluted, 1:8" Twist, 10 Rounds, Coyote Cerakote, "C" 19536

FightLite DFX, Drop-On Upper Receiver Group, 223 Remington/5.56 NATO, 16.25" Barrel, Fits AR15 Lower Receivers, Gas-Piston & Pusher-Rod System, Closed Bolt, Black, Accepts STANAG Pattern Magazines, Belt-Fed M27 Links, and 100/200 Round SAW Drums DFX-001

FightLite Mission Configurable Rifle, 5.56 NATO, 16.25", Black MCR-060

FightLite Mission Configurable Rifle, 5.56 NATO, 16.25", Black MCR-060M