The United States Navy Mk 12 MOD 0/1/H Special Purpose Rifle (SPR) is a designated marksman rifle that was in service with United States Special Operations Forces in the designated marksman role until 2017, also designed to be shorter than standard weapons.

Apr 3, 2020 · The Mk12 SPR has since been replaced by the Mk16, Mk17 and M110 rifles, but the SPR is still used by a few of the SEAL teams and it still maintains almost a cult like following among the special operations groups.

They envisioned the SPR as a Special Purpose Receiver that drops on a standard M16/M4-type lower receiver. This receiver was to be highly accurized and would shoot a new type of 5.56x45mm round – one that would go on to be the most accurate 5.56mm cartridge in the world.

Nov 27, 2024 · The MK12 SPR was created to fill a gap in the arsenal of special operations between the M4 and full sniper rifles. This concept had multiple variations through its service life with the main variants being the Mod 0, Mod H, and Mod 1.

Dec 20, 2010 · After a time when the perfect storm of the users wanting a match-grade trigger and the bolt-bounce issue was identified, the Special Purpose Receiver morphed into a complete rifle that was type-classified as the Mk12. Scoped versions of …

Jun 2, 2020 · It was eventually type classified by the Navy as the Mk 12, though the Army also uses this designation. This weapon system, used by Special Forces units of both the US Army and US Navy, is a heavily modified deviation from the familiar AR15/M16 line of infantry weapons, and thus is chambered for NATO standard 5.56 x 45 mm caliber ammunition.

The MK12 SPR is a modified variant of the M16 family of weapons. The SPR grew out of a requirement of the Navy SEALs and Army Special Forces for a compact light sniper weapon. To fulfill that need, the SPR is fitted with a threaded-muzzle …

Aug 12, 2018 · The Mk 12 was specifically developed for use by the Naval Surface Warfare Center Crane Division (NSA Crane) and is largely based on workings of the AR-15 / M16 pattern rifle with a few noticeable external additions and modifications.

The Mk12 Mod1 Long Rifle is equipped with a 18″ 416R Stainless steel match grade barrel with an Allen Engineering AEMB muzzle mount coupled with an SPR collar to fit an Allen AEM5 suppressor. It’s equipped with our TYPE-A MK Series Quad Rail & B5 Sopmod furniture.

The Mk 12 Special Purpose Rifle, used by special operations forces units of both the US Army and US Navy, is a heavily modified derivative of the familiar AR-15/M16 type.