XM148 grenade launcher

XM148 grenade launcher
Launcher, Grenade, 40 mm, XM148
XM148 Grenade Launcher.jpg
The XM148 grenade launcher.
Type Grenade Launcher
Place of origin  United States
Service history
Used by U.S. Army, U.S. Air Force, Australia
Wars Vietnam War, 1989 Philippine coup attempt (U.S.A.F. issue)
Production history
Designer Karl R. Lewis
Designed 1964
Manufacturer Colt Firearms
Weight 3 lb (1.36 kg)
Length 16.5 in
Barrel length 10 in

Cartridge 40x46mm grenade
Action Single shot
Muzzle velocity 247 ft/s (74.5 m/s)
Maximum range 437 yd (400 m)
Sights Quadrant sight
The XM148 mounted to an early Colt AR-15 rifle.

The XM148 was an experimental 40 mm grenade launcher developed by Colt Firearms as the CGL-4 (Colt Grenade Launcher). Colt manufactured the launcher for field testing during the Vietnam era.

It was designed for installation below the barrel of M16-type rifles, and was intended to replace the stand-alone M79 correcting the problem of grenadiers relying on pistols as a secondary weapon. After problems with the experimental design were discovered, the XM148 was replaced by AAI Corporation's conceptually similar M203 design, currently the primary grenade launcher used by the US armed forces and others today. Originally made for use with the M16 Rifle, the XM148 was also used by US Special Forces in conjunction with the XM177E2 and the Australian SASR in conjunction with the modified L1A1, nicknamed "the bitch".

The launcher's barrel could slide forward to accept a single 40 mm round into the breech. It came with a primitive version of the quadrant sight later used with the M203. It differed from the later model by featuring an external cocking handle and an extended trigger that allowed the weapon to be fired without removing the hand from the rifle's pistol grip. This same extended trigger was also one source of the weapon's problems as it allowed accidental discharges of a loaded weapon if caught by tree branches, gear, or anything else capable of overcoming the 6 to 11 pound trigger pull.

Another problem with the weapon was that it was overly complicated compared to the M203. It was difficult to disassemble and had many small parts that could be easily lost while cleaning the weapon in the field. Where the M203 broke down into receiver group, barrel group, hand guard group and quadrant sight (the quadrant sight being the smallest piece). The XM148 broke down into barrel, pistol grip, receiver, hand guard, quadrant sight, and several small pins and clips. These issues led the U.S. military to adopt the M203 over the XM148, though the U.S. Air Force did keep a number of the XM148s. In fact U.S. Air Force Security Forces were still being trained on the XM148 in lieu of the M203 as late as 1987. Some security police units still had them in their armories until the 1990s.

The Colt XM148 grenade launcher was created by Colt's Design Project Engineer, gun designer Karl R. Lewis. The May 1967 "Colt's Ink" newsletter announced that he had won a national competition for his selection and treatment of materials in the design. The newsletter stated in part, "In only 47 days, he wrote the specifications, designed the launcher, drew all the original prints, and had a working model built."


  • TM 9-1005-249-14 Technical Manual Rifle, 5.56-mm, M16; Rifle, 5.56-mm, XM16E1; and Launcher, Grenade, 40-mm, XM148 dated 1 August 1966 (reprint)

See also

  • XM174

Wikimedia Foundation. 2010.

Игры ⚽ Нужна курсовая?

Look at other dictionaries:

  • M79 grenade launcher — Infobox Weapon name=Launcher, Grenade, 40 mm, M79 caption= M79 with the leaf type sight unfolded. origin=flagcountry|United States type=Grenade launcher is ranged=yes service=1961 present used by=See user wars=Vietnam War, Cambodian Civil War,… …   Wikipedia

  • M203 grenade launcher — Infobox Weapon name=Launcher, Grenade, 40mm, M203 caption= (dismounted) origin=Flag|United States type= Grenade launcher is ranged= yes is bladed= is explosive= is artillery= is vehicle= is UK= service= used by= See Users wars= Vietnam War and… …   Wikipedia

  • China Lake Grenade Launcher — For the similar EX 41 pump action grenade launcher, see EX 41 grenade launcher. For other uses, see China Lake (disambiguation). China Lake Pump Action Grenade Launcher …   Wikipedia

  • XM148 — Гранатомёт, 40 мм, XM148 Гранатомёт XM148. Тип: Гранатомёт …   Википедия

  • CAR-15 — Assault Rifle, 5.56 mm, XM177 USAF Airman with a GAU 5/A (Colt Model 610) Type Carbine Place  …   Wikipedia

  • List of individual weapons of the U.S. Armed Forces — Individual weapons by type and current level of use. The list is weighted towards 20th and 21st century army weapons and is not complete. Furthermore, this does not include non standard issue weapons used by United States Special Operations… …   Wikipedia

  • List of weapons of the U.S. Marine Corps — This is a list of weapons used by the United States Marine Corps:Weapons utilizedThe basic infantry weapon of the U.S. Marine Corps is the M16 assault rifle family, with a majority of Marines being equipped with the M16A2 or M16A4 service rifles …   Wikipedia

  • Weapons of the Vietnam War — A wide variety of weapons were used by the different armies operating in the Vietnam War, which included the opposing Army of the Republic of Viet Nam (ARVN) and People’s Army of Vietnam (PAVN) known as the North Vietnamese Army (NVA) during the… …   Wikipedia

  • Grenadier — A grenadier (derived from the word grenade) was originally a specialized soldier, first established as a distinct role in the mid to late 17th century, for the throwing of grenades and sometimes assault operations. At this time grenadiers were… …   Wikipedia

  • Colt's Manufacturing Company — For other uses, see CMC (disambiguation). Colt s Manufacturing Company Type Private Industry Defense Founded 1836 …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”