irregulars:

1. Contrary to the rules or to that which is normal or established. 2. A member of an irregular military force.
Non-Standard Equipment, Built to Exacting Standards.
FEER SB3 and FEER CTR IN STOCK NOW
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FEER V2.5 (patent pending)
The updated version of the first monolithic AR specific cheek riser.

FEER V2.5