QUESTIONS? CALL US AT 715-790-1322
QUESTIONS? CALL US AT 715-790-1322

AR-15 UPPERS

.22 ARC Upper Receiver

OPTICS

Black rifle scope with adjustment knobs and green-tinted objective lens.
Vortex Optics
Two black thermal rifle scopes labeled HARVESTER and SNIPER LRF on a transparent background.
Predator Thermal Optics

TOP PICKS

Two rifle upper receivers with scopes shown side by side on a white background.
Uppers + Optics Bundles
17" v.3 Grendel Hunter Handguard - Black
Handguards
Bolt Carrier Groups
Low profile .750 click adjustable gas block with black nitride finish for AR-15 tuning.
Gas Blocks
5, 10, 15 and 20 round magazines for the 22 arc, 6mm arc and 6.5 Grendel
Magazines
Stalker AR-15 Lower Build Kit 1
Lower Build Kits
Two rifle barrels one black and one stainless steel shown side by side on a white background.
Barrels

UPPER PARTS

LOWER PARTS

GRENDEL HUNTER MISC

AR-15 UPPERS

.22 ARC Upper Receiver

OPTICS

Black rifle scope with adjustment knobs and green-tinted objective lens.
Vortex Optics
Two black thermal rifle scopes labeled HARVESTER and SNIPER LRF on a transparent background.
Predator Thermal Optics

TOP PICKS

Two rifle upper receivers with scopes shown side by side on a white background.
Uppers + Optics Bundles
17" v.3 Grendel Hunter Handguard - Black
Handguards
Bolt Carrier Groups
Low profile .750 click adjustable gas block with black nitride finish for AR-15 tuning.
Gas Blocks
5, 10, 15 and 20 round magazines for the 22 arc, 6mm arc and 6.5 Grendel
Magazines
Stalker AR-15 Lower Build Kit 1
Lower Build Kits
Two rifle barrels one black and one stainless steel shown side by side on a white background.
Barrels

UPPER PARTS

LOWER PARTS

GRENDEL HUNTER MISC

AR-15 UPPERS

.22 ARC Upper Receiver

OPTICS

Black rifle scope with adjustment knobs and green-tinted objective lens.
Vortex Optics
Two black thermal rifle scopes labeled HARVESTER and SNIPER LRF on a transparent background.
Predator Thermal Optics

TOP PICKS

Two rifle upper receivers with scopes shown side by side on a white background.
Uppers + Optics Bundles
17" v.3 Grendel Hunter Handguard - Black
Handguards
5, 10, 15 and 20 round magazines for the 22 arc, 6mm arc and 6.5 Grendel
Magazines
Bolt Carrier Groups
Low profile .750 click adjustable gas block with black nitride finish for AR-15 tuning.
Gas Blocks
Stalker AR-15 Lower Build Kit 1
Lower Build Kits
Two rifle barrels one black and one stainless steel shown side by side on a white background.
Barrels

UPPER PARTS

LOWER PARTS

GRENDEL HUNTER MISC

QUESTIONS? CALL US AT 715.790.1322

Castle Nut

$7.99

In stock

Additional information

Weight .044 lbs
Dimensions 1.75 × 1.75 × .75 in
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