SR-25
From Wikipedia, the free encyclopedia
- For State Route 25 or State Road 25, see list of highways numbered 25.
 |
This article needs additional citations for verification. Please help improve this article by adding reliable references. Unsourced material may be challenged and removed. (September 2008) |
| SR-25 | |
|---|---|
 Israeli Defense Forces SR-25 with sound suppressor attached |
|
| Type | Sniper rifle |
| Place of origin |  United States |
| Service history | |
| In service | 1990 |
| Used by | See Users |
| Wars | Afghanistan War, Iraq War, 2006 East Timorese crisis, 2nd Intifada |
| Production history | |
| Designer | Eugene Stoner |
| Manufacturer | Knight's Armament Company |
| Variants | Match rifle, with 24 in (610 mm) barrel
Lightweight match rifle, with 20 in (510 mm) barrel SR-25K Carbine, with 16 in (410 mm) barrel Sporter, with 20 in (510 mm) non free-floating barrel |
| Specifications | |
| Weight | Match Rifle 10.75 lb (4.88 kg), LwMatch 9.5 lb (4.3 kg), Carbine 7.5 lb (3.4 kg), Sporter 8.75 lb (3.97 kg) |
| Length | 1,118 mm (44.0 in) |
| Barrel length | Match Rifle 24 in (610 mm)
(also LwMatch & Sporter 20 in/510 mm, Carbine 16 in/410 mm) |
|
|
|
| Cartridge | 7.62x51mm NATO |
| Action | Gas-operated, rotating bolt |
| Rate of fire | Semi-automatic |
| Feed system | 10 and 20-round detachable box magazine |
The SR-25 (Stoner Rifle-25) is a semi-automatic sniper rifle designed by Eugene Stoner and manufactured by Knight's Armament Company. The SR-25 uses a rotating bolt and a direct impingement gas system. It is loosely based on Stoner's AR-10, rebuilt in its original 7.62x51mm NATO caliber. Up to 60% of parts of the SR-25 are interchangeable with the AR-15 and M16—everything but the receiver, the hammer, the barrel assembly and the carrier/bolt. SR-25 barrels were originally manufactured by Remington Arms with its 5R (5 grooves, rounded) rifling, with twist 1:11.25 (1 turn in 11.25 inches/286 millimetres). The heavy 24 in (610 mm) barrel is free-floating, so handguards are attached to the front of the receiver and do not touch the barrel.
Contents |
[edit] Design
 |
This section does not cite any references or sources. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. (November 2009) |
The SR-25 match rifle has no iron sights, and all models have a Picatinny-Weaver rail system on the top of the receiver to accept different scope mounts or a carrying handle with iron sights (front sight mounted on the rail located on the forward end of the non-modular handguard). The match version is designed to shoot at a precision of 0.5 minute of arc, which corresponds to 0.5-inch (13 mm) groups at 100 yards (91 m).
The Mk 11 Mod 0 system comes in 7.62 mm NATO caliber, and is designed for match-grade 7.62x51mm NATO ammunition. The Mk 11 system includes the rifle, 20 round box magazines, QD (Quick Detachable) scope rings, Leupold Vari-X Mil-dot riflescope, Harris swivel-base bipod on a Knight's mount, and QD sound suppressor, which is also manufactured by Knight's Armament Co. Flip-up BUIS (Back up iron sights) are attached to the modified gas block and upper receiver.
The Mk 11 Mod 0 utilizes a Obermeyer 20 in (510 mm) match target barrel, along with a RAS (Rail Accessory System) fore-end made by KAC, consisting of an 11.35 in (288 mm) long match fore-end. The RAS allows for quick attachment/detachment of MIL-STD-1913 components. The aluminium fore-end makes no contact with the barrel forward of the receiver, allowing for extreme accuracy. The Mk 11 Mod 0 has an empty weight of 15.3 lb (6.9 kg), and an overall length of 45.4 in (115 cm). The civilian version, using the longer 24 in (610 mm) match barrel, are guaranteed to produce groupings using factory match loads of less than 1 in (25 mm) at 100 yd (91 m) or 0.3 angular mil.
The Mk 11 Mod 0 System is very similar to the KAC M110 Semi-Automatic Sniper System, though the M110 utilizes the newer URX Rail system, a length-adjustable fixed buttstock, and an integrated flash hider.
[edit] Users
|
|
This section needs additional citations for verification. Please help improve this article by adding reliable references. Unsourced material may be challenged and removed. (July 2009) |
Australia: Australian Army[1]
Israel: Israeli Defense Forces[citation needed]
Poland: GROM[citation needed]- United States: Used by Delta Force, SEALs, and the USMC with the designation Mk 11 Mod 0. Is also the basis of the M110 Semi-Automatic Sniper System used by the U.S. Army.
[edit] See also
- United States Navy Mark 12 Mod X Special Purpose Rifle
- List of individual weapons of the U.S. Armed Forces
[edit] References
- ^ http://www.defence.gov.au/opslipper/images/gallery/20071019/index.htm Reconstruction Task Force-2 on patrol
[edit] External links
- Knight's Armament Company - SR-25 Series 7.62 mm Rifle
- Modern Firearms Site
- Impact Guns page on the SR-25
- SR25 Comparison
|
|||||||||||||||||||||||||||||||||||||||||||
|
|||||||
