LMT Defense SPM10 Standard Patrol Model, 5.56x45mm, 10.5 in. Barrel, Black, Short Barreled Rifle The LMT Defense SPM10 is the 10.5 in. version of LMT's Standard Patrol Model. LMT describes it as a standard issue service rifle outfitted with LMT quality parts and built with attention to detail so it functions when you need it most. It is chambered in 5.56x45mm (.223), runs on direct impingement, and wears a six-position Generation 2 M4 stock on LMT's Defender semi-auto lower receiver. Why Buy It 10.5 in. chrome moly vanadium barrel, cryogenically treated, 1:7 RH twist 5.56x45mm (.223) direct impingement operation LMT Defender semi-auto lower receiver Six-position Generation 2 M4 stock Safe/semi selector, single stage trigger Ships with a magazine and owner's manual Barrel and Operation The SPM10 uses a chrome moly vanadium barrel that is cryogenically treated and cut with a 1:7 right-hand twist, a rate that stabilizes a broad range of 5.56 and .223 bullet weights. The rifle runs on a simple, proven direct impingement system. LMT builds the Standard Patrol Model to the same pattern it has supplied for law enforcement and government use: a robust, accurate rifle with a simple design that field strips with no special tools. Compact Patrol Size At 10.5 in., the barrel keeps the rifle short and handy for vehicles, tight spaces and home defense. The six-position Generation 2 M4 stock lets you set length of pull for body armor, cold weather gear or a squared-up stance. NFA item: with a 10.5 in. barrel, the SPM10 is a short barreled rifle regulated under the National Firearms Act. It ships only to a licensed dealer with SOT. Shop more LMT Defense rifles or browse our short barreled rifles. Specifications Brand: LMT Defense Model: SPM10 Standard Patrol Model Part number: SPM10 UPC: 815415016825 Caliber: 5.56x45mm (.223) Barrel length: 10.5 in. Barrel material: Chrome moly vanadium, cryogenically treated Twist rate: 1:7 RH Operation: Direct impingement Lower receiver: LMT Defender semi-auto Stock: Six-position Generation 2 M4 Selector: Safe/semi Trigger: Single stage Color: Black Includes: Magazine, owner's manual Frequently Asked Questions Is the SPM10 an NFA item?Yes. With its 10.5 in. barrel it is a short barreled rifle, and it ships to a licensed dealer with SOT. What is the twist rate?1:7 right-hand twist in a cryogenically treated chrome moly vanadium barrel. What stock does it use?A six-position Generation 2 M4 stock. What comes in the box?The rifle, a magazine and an owner's manual. Order the LMT Defense SPM10 from BattleHawk Armory today.