• MRP™ MID LENGTH "SPECWAR" UPPER RECEIVER • 12.5" CHROME LINED MID GAS 1:7" TWIST 5.56 BARREL • STANDARD SEMI-AUTO BOLT CARRIER GROUP • AMBIDEXTROUS CHARGING HANDLE • MARS-L AMBIDEXTROUS LOWER W/ SOPMOD BUTTSTOCK AND TWO-STAGE AXLE TRIGGER GROUP • INCLUDES: OPERATOR'S MANUAL, MAGAZINE, AND 3 RAIL PANELS
