Kaiser US Lower Parts. Lower Receiver, Grip, Magazine, Stock.

Lower Parts

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Advanced Polymer AR-15 Rifle Matched Upper Lower Combo X-7 Fusion Pro Receiver Set

Shipping Available

Kaiser’s proprietary polymer receiver sets are superior to aluminum in nearly every way. Injection molded from specially formulated virgin polymers enhanced with impact modifiers and both long and short-strand glass fibers for impact and shatter resistance.

GLOCK ONE SHOT Mag Extension Model 27 & 33 Base Plate + Insert

30 in stock / Shipping Available

Glock Mag extension replaces the factory magazine floor plate and provides the extra finger groove for shooting comfort and control.

Kaiser US Shooting Products Titanium Grip Screw

29 in stock / Shipping Available

Kaiser Shooting Products Titanium Grip Screw