**Choose UPS Shipping ONLY, please! **FFL REQUIRED BEFORE SHIPPING. Please contact your local FFL for transfer, and have them send a copy of their FFL to firstname.lastname@example.org , and please have them reference your name/order number. No we do NOT accept fax as we live in the modern world and we also do NOT accept carrier pigeon. ****At this time, we can not ship complete rifles to California, Connecticut, Massachusetts, Maryland, New York or D.C., unless you have special circumstances (LE,etc) and have an FFL dealer that will accept it for you. Please be sure of your local laws before ordering. We are not responsible for orders that cannot be acquired due to your local laws.**Base Model Specs (Photos May Include Options and items not included such as optics,etc)Weight: 6.1lbsLength: 32.5in (stock collapsed)--Upper--Centurion Arms 16" 5.56mm chrome hammer forged barrel, government profile under the handguard, 1/7 twist, Independently Certified MIL-SPEC 11595E barrel steel, specifically engineered for machine guns for longer life (most all hammer forged barrels on the market are not made of this steel), USGI 5.56mm NATO, chrome lined bore and chamber. HPT/MPI (High Pressure Test/Magnetic Particle inspected), per MIL-SPEC. Manganese Phosphate Finish on entire barrel, --Centurion Arms CM4 Forged Upper receiver is standard forged Mil-Spec with M4 Extended feed ramps--Centurion Arms low profile pinned gas block--13" MLOK Centurion Arms CMR Rail--Mid-length gas tube --Standard A2 Flash Hider--BCG: Full Auto machined from MIL-SPEC Carpenter 158 Steel. MPI (Magnetic Particle Inspected), Shot Peened, Tool Steel Extractor w/enhanced extractor spring, Chrome Lined Carrier, Hardened, Chrome Lined Gas Key w/staked Grade 8 Fasteners as per MIL-SPEC.--Lower--Centurion Arms CM4 Forged Lower Receiver--Receiver Plate-Standard (options coming soon)--Fire Control Group: MIL Spec --Trigger Guard: Aluminum Winter Trigger Guard--Buffer: H2--Grip: A2--Stock: B5 BravoOptionalHandguard Options--Centurion Arms 9", 10", 12", Carbine Cutout, Mid-Cutout and 12" FSP (Carbine Front Sight Pocket) C4 Rail--Centurion Arms 9.5", 11", 12" 13.688" & 14" Original Standard CMR Handguard in Gen1 or Gen2 (with lightening cuts)--Centurion Arms 9", 10.5" & 15" MLOK CMR HandguardOther Options--PRI gas buster charging handle--BattleComp 1.5, BattleComp 2.1, Surefire SFMB Muzzle Brake, Centurion Arms 9315 Open (3 or 4) Prong Flash Hiders and Centurion Arms 6315 Stoner 63 Flash Hider--Backup Iron Sights- Knights Folding Front and 200-600M Rear --Ergo Grip, Reptilia Grip--Geissele SSA-E Trigger, Knights 2-Stage TriggerPrice for Base Upper with Standard Specs ONLY $1200.00!Includes: Rifle, (1) 30rd Magazine, Digital USGI Manual and Centurion Arms Propaganda
**Choose UPS Shipping ONLY, please! **FFL REQUIRED BEFORE SHIPPING. Please contact your local FFL for transfer, and have them send a copy of their FFL to email@example.com , and please have them reference your name/order number. No we do NOT accept fax as we live in the modern world and we also do NOT accept carrier pigeon. ****At this time, we can not ship complete rifles to California, Connecticut, Massachusetts, Maryland, New York or D.C., unless you have special circumstances (LE,etc) and have an FFL dealer that will accept it for you. Please be sure of your local laws before ordering. We are not responsible for orders that cannot be acquired due to your local laws.** Standard Specs--Centurion Arms 18" MK12 5.56mm stainless match air gauged barrel with 1 in 7" twist (blasted stainless finish)--Upper receiver is a standard forged Mil-Spec with M4 extended feed ramps--Centurion Arms low profile MK12 gas block, pinned--Rail: 12" Centurion Arms C4 Rail--OPS Inc Brake and Collar--Lower--Centurion Arms MK12 Forged Lower Receiver (1 of 50)--Receiver Plate-Standard (options coming soon)--Fire Control Group: MIL Spec --Trigger Guard: Aluminum Winter Trigger Guard--Buffer: Rifle--Grip: A2--Stock: A2 Standard**Optics NOT Included**Options Available for Mod 1, Mod 0 and customized rifles...Please read below for details**Further Information on the Original United States Navy Mark 12 Mod 0 and Mod 1 Special Purpose Rifle (SPR)The MK12 rifle was one of the beginning stages of "enhanced carbine" concept. The original designation as SPR was intended to mean Special Purpose Receiver but the system was eventually type classified by the Navy as a standalone rifle and designated MK12 Mod 0/.1. The concept started with the idea of having a sniper/designated marksman upper receiver for a special operator's standard M4 lower receiver but during initial testing and limited fielding Naval Surface Warfare Center, Crane Division delivered the upper receiver with their own lower so the testing units would not have to deplete the units operational weapons to support the testing. The lowers supplied were mostly M-16A1 lowers with Knights Armament match triggers installed and fixed butt stocks.Upper receiversUse a standard Mil-Spec type 3 hard coat anodizing. The receivers have M4 style lowered feed ramps built in to enhance reliability as well as the rail interface numbering system on topBarrelAn 18-inch, threaded muzzle, match-grade, free floating, stainless steel, heavy barrel with a 1:7 rifling twist is a standard for the SPR. The barrels are manufactured with a special contour to maximize accuracy and to minimize weight. An OPS in. muzzle and collar (to align the OPS Inc. 12th Model Suppressor) is installed with the barrel. These barrels were designed to take advantage of the new Mk 262 cartridge, which uses a 77-grain bullet. HandguardsA free-floating forearm is used, which does not touch the barrel directly. This increases the accuracy of the weapon by removing vibration and pressure exerted on the barrel by the rest of the gun. The Mk12 Mod1 uses the Knights Armament Company (KAC) M4 Match Free-Floating RAS (Rail Adapter System). The Mk12 Mod0 uses the PRI Gen III Handguard, and the addition of the PRI SPR Straight Top Rail.SightsMk12 Mod1 uses the KAC rail forend flip-up front sight and the KAC 600 meter flip-up rear.Mk12 Mod0 uses the PRI flip-up front sight (in place of standard MK12 gas block) and the ARMS, Inc #40 flip-up rear.OpticsCurrent MK12 rifles are being fielded with Night Force 2.5x10 scopes and high rings.SuppressorThe OPS Inc. 12th Model SPR Muzzle Brake Suppressor (MBS) threads directly onto the OPS Inc. muzzle brake and uses the collar to stay centered.AmmunitionThe SPR is not used to fire standard issue 5.56 x 45mm NATO M855 ball or M856 tracer ammunition and especially not M193 ball ammunition. Due to the limits in terminal performance and relatively poor accuracy of the 62-grain M855 ball, the Mk 262 Open Tip Match (OTM) round was developed as a more accurate round for the SPR, and is manufactured by Black Hills Ammunition.
Back to top