"When you think of the Springfield Armory Saint M-Lok AR-15 Rifle with B5 Stock, think unflinching reliability from a modern classic. The lightweight mid-length direct gas impingement system keeps this dependable shot maker on beat like a heart. Top-end B5 Systems furniture includes steep-angled, extended-tang Type-23 P-Grip with palm-filling ergonomics and enhanced SOPMOD Stock with ergonomic cheekweld, integrated QD sling mounts and no-slip cushioned buttpad. The full-length 15"" aluminum handguard features ample M-Lok real estate for accessories. A 16"" chrome moly vanadium Melonite-coated barrel with 1:8"" rate-of-twist rifling offers rugged, easy-handling performance. Low-profile adjustable flip-up sights promote fast, on-target aiming. Forged 7075 T6 Aluminum upper and lower receiver features type-III hardcoat-anodized finish with forward assist and M4 feed ramps on upper and Accu-Tite tension system on lower. Other details include M16 bolt carrier group with 9310 steel bolt, nickel-boron-coated GI trigger, carbine ""H"" heavy tungsten buffer, GI-style charging handle, ambidextrous safety switch, and SA muzzle brake. Springfield Armory Saint M-Lok B-5 Stock AR-15 Rifle includes one 30-round Magpul PMAG Gen M3 magazine. Mid-length direct gas impingement system 15"" aluminum M-Lok handguard SOPMOD Stock with ergonomic cheekweld Steep-angled, extended-tang Type-23 P-Grip Forged 7075 T6 Aluminum upper and lower receiver Low-profile adjustable flip-up sights GI-style charging handle Ambidextrous safety switch 30-round Magpul PMAG Gen M3 magazine"