TRW Low Maintenance Rifle
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(Redirected from Thompson Ramo Wooldridge Low Maintenance Rifle)
| TRW Low Maintenance Rifle | |
|---|---|
The TRW LMR.
Minor differences exist in the stock, handguard, and sights given the various prototypes made. |
|
| Type | Full-automatic fire only insurgency assault rifle |
| Place of origin |  United States |
| Production history | |
| Designer | Donald A. Stoehr (1927-2011)[1] |
| Designed | February 1971[2] |
| Manufacturer | TRW Systems Group |
| Unit cost | Less than $130 (1971),[3] matching ARPA request. |
| Produced | 1971—1973 |
| Number built | Less than 10. |
| Specifications | |
| Weight | Unloaded: Lua error in Module:Convert at line 1851: attempt to index local 'en_value' (a nil value).[4] Loaded: Lua error in Module:Convert at line 1851: attempt to index local 'en_value' (a nil value).[4] |
| Length | Lua error in Module:Convert at line 1851: attempt to index local 'en_value' (a nil value).[4] |
| Barrel length | Lua error in Module:Convert at line 1851: attempt to index local 'en_value' (a nil value).[5] |
|
|
|
| Cartridge | 5.56×45mm NATO |
| Action | Roller locked open bolt gas-operated long-stroke piston |
| Rate of fire | 450 RPM Cyclic[4] |
| Muzzle velocity | 3,248 ft/s (990 m/s)[4][5] |
| Effective firing range | 460 metres (1,510 ft)[4] |
| Maximum firing range | 2,425 metres (7,956 ft)[5] |
| Feed system | 20, 30-Round STANAG magazine[4] |
| Sights | Rear: Two-position flip aperture Front: Adjustable post |
The TRW Low Maintenance Rifle or, LMR was an insurgency weapon designed by TRW Inc. (formerly Thompson Ramo Wooldridge) of the United States during the Vietnam War. The intent was to produce an easy-to-use and operate firearm which could be disseminated to insurgent forces supporting the United States' military interests. The firearm utilized the same 5.56×45mm NATO ammunition and STANAG magazines as the M16 rifle. The rifle can also be equipped with the M6 bayonet which is included as the full weapon package along with its M8A1 scabbard.
Development began in 1971, and ceased in 1973 with the weapon never having been fielded.
See also
- FP-45 Liberator/Deer gun - insurgency handguns of similar concept.
- International Ordnance MP2 - another insurgency firearm derived from the Sten.
- Avenger submachine gun - improvised submachine gun made and used by Ulster Loyalists in Northern Ireland during The Troubles.
- FG 42/Sturmgewehr 52 - rifles of similar external design.
- Sterling 7.62 - an "emergency standby weapon" of British origin.
- Knight's Armament Company SR-47 - an assault rifle that was intended to have similarly high reliability as the LMR.
References
- Notes
- Sources
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