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

Lower Parts

Showing all 6 results

Advanced Polymer AR-15 Rifle Matched Upper Lower Combo X-7 Fusion Pro Receiver Set V.2

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.

Anti-Walk Trigger Pins now included in V.2

Anti-Walk Trigger Pins

Shipping Available


Elf Match Trigger

In stock / Shipping Available

The ELF Drop-In Match Trigger has been built for performance. The only AR- 15 trigger using aerospace grade sealed bearings, making for an incredibly smooth and fast trigger pull. Pull weight is so easy to adjust it can be done in seconds without removing the trigger from your lower receiver.
$240.00 $240.00
ELF-SE Trigger

In stock / Shipping Available

The ELF-SE Drop-In Trigger maintains the Elftmann reputation for quality,
craftsmanship and customer service in an affordable package.
$150.00 $150.00
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.

$13.00 $13.00
Kaiser US Shooting Products Titanium Grip Screw

Out of stock / Shipping Available

Kaiser Shooting Products Titanium Grip Screw

$5.50 $5.50