Rifles

M400-TREAD PISTOL — A reliable, well-built AR pistol upper offering solid value and clean machining. 4.7/5 customer rating. Ships from Grand Junction, CO.

M400-TREAD PISTOL - Best Price — A factory-built Sig Sauer AR pistol offering proven reliability and quality at a mid-range price. 4.8/5 rated by buyers. Ships from Grand Junction, CO.

M400-TREAD V2 - Best Price — The smart-value AR-15 with out-of-the-box-ready M-LOK handguard, 4150 CMV barrel, and enhanced trigger. A reliable workhorse without the boutique price. Ships from Knoxville, TN.

New AR-15 Rifles — 391+ sold. In stock at Polymer80Parts.

New Barrel Length — 296+ sold. In stock at Polymer80Parts, ships from Grand Junction, CO.

Order AR-15 style Online — A reliable, 7075-T6 forged upper receiver with consistent quality and excellent finish. Over 40 sold. Ships from Grand Junction, CO.

Order Availability Online — 277+ sold. In stock at Polymer80Parts.