Standart caliber rifles
Austria
 Steyr SSG 69
 Steyr SSG 04
 Steyr SSG 08
 Steyr Scout Tactical
 Styria Arms CSR99 new
 Unique Alpine TPG-1
Belgium
 FN 30-11
 FN Police Rifle
 FN FNAR
Brazil
 IMBEL Fz.308
Canada
 Timberwolf C14
China (People Republic of)
 QBU-88
 JS 7.62
Czech Republic
 CZ 700
Finnland
 Saco TRG
France
 FR F2
 PGM Ultima Ratio
 PGM Mini-Hecate .338
Germany
 HK PSG-1
 HK MSG-90
 Walther WA2000
 Mauser SP66
 Mauser 86SR
 Mauser SR-93
 Blaser 93 Tactical
 DSR-1
 SSG-82
 Erma SR-100
 GOL-Sniper
Great Britain
 Enfield L42A1 & Enforcer
 Parker-Hale M82
 AI Arctic Warfare / L96
 AI AE
 RPA Rangemaster
Israel
 Galil sniper
 TEI M86-SR
Italy
 Beretta sniper
Poland
 "Alex" / "Bor"
Turkey
 MKEK JNG-90 "Bora"
USA
 Barret 98B
 Armalite AR10(t)
 M21
 Remington 700
 M24
 M40
 SR-25, Mk.11 mod.0, XM110
 Savage 10FP & 110FP
 RAI / RAP model 300
 FN SPR
 CheyTac Intervention
 Kel-tec RFB
 VR1 PSR
 FN FNAR
USSR / Russia
 Dragunov SVD
 SVU and SVU-A
 VSS
 SV-98
 SV-99
 VSK-94
 SVDK
 MTs-116M
Switzerland
 SIG SG550 Sniper
 Sig-Sauer SSG 2000
 Sig-Sauer SSG 3000
 SIG STR/SHR 970
 B+T APR 308
 B+T APR 338
Yugoslavia
 Zastava M76

all texts and some pictures
copyright © 1999-2009
by Max R. Popenker
and can not be used without author permission

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M21 Sniper Rifle (USA)

Current productsion Springfield M1A target rifle set up to duplicate M21, but with modified wooden adjustable stock.

US Army sniper with re-issued M21 sniper rifle fitted with new scope mount and telescope sight in Iraq, 2006

Caliber: 7.62x51 NATO (.308 Winchester)
Mechanism: Rotating bolt, gas operated semi-automatic rifle.
Length: 1118 mm
Barrel: 559 mm 
Weight: without scope 5.27kg
Capacity: 20 round box magazine

Buy Springfield M1A / M21 rifles at Impact Guns online store

The XM21 sniper rifle was developed jointly by the Army Weapons Command  at Rock Island, Combat Development Command at Ft. Benning, and the Limited Warfare Agency at Aberdeen, during late 1960s. The XM21 was an accurized M14 National Match (NM) semi-automatic rifle equipped with a Leatherwood 3X-9X Adjustable Ranging Telescope (ART). The Rock Island Arsenal converted 1,435 M14NM rifles to XM21 sniper rifles for initial fielding to Vietnam in 1969. The rifle was initially fielded with a wooden stock, which was later replaced with a fiberglass stock. The XM21 was officially type classified M21 in 1975, and remained a standard US Army sniper rifle until 1988, when it was officially replaced with M24 SWS. The M21 was accurate to 750 yards (690m). The rifle used 7,62mm NATO M118 ammunition, especially developed for sniping and long range match shooting. The ART telescope featured a variable magnification power of from 3X to 9X, for adjustable ranging between 300m and 900m. This adjustable ranging feature removed much of the guesswork from aiming at the target. The ART was ballisticly matched with M118 ammunition.
Later on, a modified M25 sniper rifle was developed for US Scecial Operations forces. It retained basic M14 / M21 mechanisms but added a McMillan polymer stock, some commercially available parts (such as replacement gas piston), and a new scope mount. M25 rifles are ususally issued with more modern Baush & Lomb or Leupold telescope sights. Older Sionics suppressor is replaced by Ops Inc suppressor.
Finally it must be noted that more than few M21 rifles were recently re-issued to US forces in Iraq and Afghanistan to complement older M24 rifles before enough M110 semi-automatic rifles will be available. Some old M14 rifles also were recently converted to M21 configuration as well. Most such conversion and re-issues use new generation scope mounts with Picatinny rails and new-generation telescope sights.

M21 sniper rifle is gas operated, semi-automatic rifle which uses Garand-type rotary bolt locking and gas-operated short stroke piston system, located below the barrel. M21 rifle retained adjustable iron sights of M14 rifle, and added a telescope or night sight using standard M14 rifle side mount (each military M14 rifle was manufactured with provisions for mounting a scope bracket on the left side of the receiver). For special operations, M21 rifle was often issued along with Sionics sound suppressor (silencer).

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