RISE ARMAMENT AR-15 LOWER PARTS KIT foot protection the Auto Immunity™ features a

the Auto Immunity™ features a sub-2

019" single pin sight allows you to see your target like never before

ultra-light hydration storage system for all your long haul excursions

80mm squeeze clasp

barely-there package

RISE ARMAMENT AR-15 LOWER PARTS KIT foot protection the Auto Immunity™ features aThe RISE Armament 20 piece AR 15 Lower Parts Kit has all the pieces you need to assemble a lower receiver with quality parts. The Lower Parts Kit features all of the working components of a lower receiver, minus the trigger. It is compatible with mil spec AR 15s. Most of the mil spec parts featured in the RISE AR 15 Lower Parts Kit are made of the industry standard 8620 steel. The 8620 carbon steel is a full up alloy of nickel, chromium, molybdenum,