Chambering: 308 AR M118 chamber. Upper Receiver: A3-style, numbered flat-top with M4-style feed ramps. Lower Receiver: FAR-308, DPMS GEN 1 with enhanced triggerguard and bolt stop. Barrel: Criterion 20", 1:11 twist, chrome-lined, match-grade. Handguard float tube: 15". Midwest Industries Combat Rail, M-LOK. Buttstock: Fixed, A1 with A2 buttplate. Grip: Ergo SureGrip, ambi. Trigger: Two-stage, non-adjustable, FA factory-tuned match, 4.5 lbs. Extensive options. Weight: 8 lbs. 13 oz. Length: 40.25" The “SC” model has a side charging bolt carrier group with a staked key. Add 5% for the Guardian SC model.