FMK Firearms AR1 Extreme Black Multi Caliber AR-15 Polymer Lower
$45.19
The FMK Firearms AR1 is an ultralight polymer lower receiver for AR-15 style firearms. It features durable proprietary polymer construction, molded in black finish, integrated trigger guard, and compatibility with most lower parts kits and mil-spec upper receivers.
Aero Precision .308 Stripped Lower Features:
Aero Precision’s M5 .308 Stripped Lower Receiver helps you build a big-bore AR from the ground up. Mil-spec dimensions and coating ensure the highest quality and correct component interface. It features a upper and Nylon tipped tension screws, rear takedown pin detent hole that is threaded for a 4-40 set screw, bolt catch that is threaded for a screw pin (no roll pin needed), and a integrated trigger guard. This stripped lower receiver works with standard DPMS 308 components and magazines.
Aero Precision M% Lower Receiver Specifications:
AR308 Stripped Lower Receiver
7075-T6 Forged Aluminum
Integrated Trigger Guard
.250 takedown Pin Holes
“Cal Multi” Markings
Upper Tension Screw
Uses DPMS LR-308/SR-25 Mags
Bolt Catch Threaded for Screw Pin
Rear Takedown Pin Detent Threaded for 4-40 Set Screw
Markings Work with 45, 60, and 90 Degree Safety Selectors
Black Anodized
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