The AR - 10B brings back the flavor of the early ArmaLite AR - 10 and AR - 15 rifles, featuring original, early M16 tapered handguards, pistol grip and short buttstock, all finished in the original brown color. Most noticeably, the unique charging handle, has been returned to production for the first time in almost 40 years! The effect is striking! MODEL: AR - 10B CALIBER: .308/7.62MM UPPER RECEIVER: FORGED AIRCRAFT ALLOY BOLT: SIX LUG EJECTOR: SPRING LOADED PLUNGER, AUTOMATIC EJECTION TRIGGER: SINGLE STAGE, TWO STAGE NM OPTIONAL BARREL: 20" CHROME LINED RIFLING TWIST: RH 1:11.25 INCH FRONT SIGHT BASE: M16 STYLE MUZZLE DEVICE: FLASH SUPPRESSOR BUTTPLATE: FIXED, NO TRAP DOOR FINISH: MAGNESIUM PHOSPHATED STEEL, HARD ANODIZED ALUMINUM FURNITURE: VINTAGE M16, SEMI-GLOSS BROWN EPOXY FINISH OVERALL LENGTH: 41 INCHES WEIGHT: 9.5 POUNDS COMPLETE WITH: ONE 10 ROUND, ONE 20 ROUND MAG OWNERS MANUAL LIFETIME WARRANTY