Lantac
LanTac SF 15 Patrol Complete Upper .300 AAC Blackout 14.5 Barrel
$1175.49Get the best deal on the LanTac SF 15 Patrol Complete Upper 01-FA-300-PATROL-UP .300 AAC Blackout 14.5 Uppers at GrabAGu…
Uppers
354 products
Lantac
LanTac Upper Standard Receiver 5.56 NATO / .223 Rem M4 Feed Ramps for AR-15
$139.99Get the best deal on the LanTac Upper Standard Receiver 01-RV-UP-USR-SF15 5.56 / .223 Rem Uppers at GrabAGun.com. Get th…
Lantac
LanTac Upper Advanced Receiver Anodized Billet
$229.99Get the best deal on the LanTac Upper Advanced Receiver LA00221 Uppers at GrabAGun.com. Get the best deals on Uppers for…
Knights Armament
Knights Armament Company AR-15 Upper 5.56 NATO
$1713.60Get the best deal on the Knights Armament Upper Receiver Kit 31962 5.56 16 Uppers at GrabAGun.com. Get the best deals on…
Knights Armament
Knights Armament Upper Receiver Kit 5.56 NATO 11.5 Barrel M-LOK
$1899.99Get the best deal on the Knights Armament Upper Receiver Kit 31963 5.56 / .223 Rem 11.5 Uppers at GrabAGun.com. Get the …
Knights Armament
Knights Armament Upper Receiver Kit 5.56 NATO 14.5 Barrel M-LOK
$1999.99Get the best deal on the Knights Armament Upper Receiver Kit 31949 5.56 / .223 Rem 14.5 Uppers at GrabAGun.com. Get the …
Knights Armament
Knights Armament SR-25 APC Upper Receiver Assembly 308 Winchester 16 Barrel URX 4 M-Lok Handguard
$3705.99Get the best deal on the Knights Armament SR-25 111474 .308 Win 16 Uppers at GrabAGun.com. Get the best deals on Uppers …
Knights Armament
Knights Armament Company KAC SR-25 APR 20 Upper MLOK
$3705.99Get the best deal on the Knights Armament SR-25 111472 .308 Win 20 Uppers at GrabAGun.com. Get the best deals on Uppers …
Knights Armament
Knights Armament SR-25 Complete Upper 6.5 Creedmoor 22 Barrel M-LOK Handguard
$3379.99Get the best deal on the Knights Armament SR-25 Complete Upper 100223 6.5 Creedmoor 22 Uppers at GrabAGun.com. Get the b…
Hm Defense
HM Defense MonoBloc Upper 5.56 NATO / .223 Rem 16 Barrel
$659.99Get the best deal on the HM Defense MonoBloc Upper 16MBUP556 5.56 / .223 Rem 16 Uppers at GrabAGun.com. Get the best dea…
Heckler And Koch
Heckler and Koch MR762 A4 Upper Receiver Black 7.62 X 51 13 Threaded Barrel w/ BCG & Buffer
$2649.00HK MR762 A4 .308 upper receiver with 13 cold hammer forged barrel adjustable gas system M-LOK handguard and included …
Heckler And Koch
Heckler and Koch MR764A4 Upper Black 7.62 X 51 16 Barrel
$2649.00Get the best deal on the Heckler and Koch MR764A4 Upper 51001892 7.62 X 51 16 Uppers at GrabAGun.com. Get the best deals…
Heckler And Koch
Heckler and Koch MR556 A4 Upper Receiver 5.56 16.5 Barrel
$2179.00Get the best deal on the Heckler and Koch MR556 A4 Upper Receiver 51000384 5.56 16.5 Uppers at GrabAGun.com. Get the bes…
Heckler And Koch
Heckler and Koch MR556 A4 Upper Receiver/Barrel Assembly 5.56 11 Barrel
$2179.00Get the best deal on the Heckler and Koch MR556 A4 Upper Receiver/Barrel Assembly 51000385 5.56 11 Uppers at GrabAGun.co…
Hatsan Usa Inc.
Hatsan USA INC. Hydra Upper Assembly .22 Caliber for Hydra Air Rifle
$149.99Get the best deal on the Hatsan USA INC. Hydra Upper Assembly HGHydBrl22 .22 Uppers at GrabAGun.com. Get the best deals…
Global Ordnance
Global Ordnance Can Launcher Upper w/ 300-Rounds of 5.56 Blanks
$324.99Shop the Global Ordnance Can Launcher 5.56 blank AR-15 golf ball and can launcher with 300 blank rounds and launcher tub…
Gemtech
Gemtech GVAC Complete Upper 5.56 16 Barrel
$739.99Get the best deal on the Gemtech GVAC Complete Upper 13833 5.56 16 Uppers at GrabAGun.com. Get the best deals on Uppers …
Geissele Automatics
Geissele Automatics Super Duty MOD1 5.56 11.5 Barrel
$1285.20Get the best deal on the Geissele Automatics Super Duty MOD1 08-544B 5.56 11.5 Uppers at GrabAGun.com. Get the best deal…
Geissele Automatics
Geissele Automatics Super Duty MOD1 Upper 5.56 13.9 P&W Barrel
$1285.20Get the best deal on the Geissele Automatics Super Duty MOD1 Upper 08-546B 5.56 13.9 Uppers at GrabAGun.com. Get the bes…
Geissele Automatics
Geissele Automatics Super Duty MOD1 Upper Flat Dark Earth 5.56 13.9 P&W Barrel
$1438.20Get the best deal on the Geissele Automatics Super Duty MOD1 Upper 08-546S 5.56 13.9 Uppers at GrabAGun.com. Get the bes…
Geissele Automatics
Geissele Automatics Super Duty MOD1 5.56 12.5 Barrel w/ HuxWrx Flash Hider
$1285.20Get the best deal on the Geissele Automatics Super Duty MOD1 08-545B 5.56 12.5 Uppers at GrabAGun.com. Get the best deal…
Geissele Automatics
Geissele Automatics Super Duty MOD1 5.56 10.3 Barrel w/ HuxWrx Flash Hider
$1285.20Get the best deal on the Geissele Automatics Super Duty MOD1 08-543B 5.56 10.3 Uppers at GrabAGun.com. Get the best deal…
Geissele Automatics
Geissele Automatics URG-I Near Clone Desert Dirt 5.56 10.3 Barrel
$1479.00Get the best deal on the Geissele Automatics URG-I Near Clone 08-176 5.56 10.3 Uppers at GrabAGun.com. Get the best deal…
Geissele Automatics
Geissele Automatics Super Duty MOD1 Complete Upper 5.56 14.5 P&W Barrel
$1285.20Get the best deal on the Geissele Automatics Super Duty MOD1 Complete Upper 08-547B 5.56 14.5 Uppers at GrabAGun.com. Ge…