Daniel Defense 02-128-15049-047 0212815049047: DANIEL DEFENSEA(R)DDM4V7(TM) SLWa Black anodized finisha Mid-length Gas System a MIL-SPEC heavy phosphate coated 4140 steel pinned low-profile gas block a M16 profile BCG a MIL-SPEC trigger a MIL-SPEC heavy phosphate finished lightweight (LW) barrel with pinned & welded DD extended flash suppressor a DD MFR XS Sights 13.5 (13.5" handguard with M-LOK attachment points) a 30-round mag a Barrel Length: 14.5" (NFA required 16" minimum with flash suppressor) a OAL: 31.5" - 34.75" DD Common FEATURESa Direct Impingement Gas System a MIL-SPEC 7075-T6 aluminum receivers a Optics-ready flat-top upper with indexing marks & polished M4 feed ramps a Enhanced flared magwell a High-Pressure Tested (HPT) MPI (Magnetic Particle Inspected) & chrome-lined Bolt Carrier Group (BCG) a Salt Bath Nitride treated cold hammer-forged Chrome Moly Vanadium steel alloy barrel a Salt Bath Nitride treated 17-4 PH stainless steel muzzle device a Bolt-Up System clamps rail directly to receiver with (4) Grade 8 MIL-SPEC fasteners a Aircraft-grade aluminum free-float rail system with full-length Picatinny top rail a DD Enhanced Buttstock & Pistol Grip with Soft Touch Overmolding features ergonomic wrist angle & integral oversized trigger guard a MIL-SPEC 6-position receiver extension & buffer spring a H-Buffer a QD swivel attachment points a Full-latch Impact plastic case a Made in the USA