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M67 Recoilless Rifle


Portable Anti-Infantry / Anti-Armor Weapon


United States | 1963



"Despite its entry of service in the early 1960s, the M67 Recoilless Rifle has managed a healthily long service tenure and is still being encountered today."



Authored By: Staff Writer | Last Edited: 09/27/2018 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site; No A.I. was used in the generation of this content.
The recoilless rifle became a prominent battlefield anti-tank weapon during the 1950s and 1960s as enemy tank armor (primarily Soviet in nature) became increasingly effective. In the U.S. Army, the recoilless rifle followed the storied Bazooka series of World War 2 (1939-1945) and encompassed such designs as the M67. The recoilless rifle received its name from its action which reduced recoil effects of the exiting projectile by expelling some of the resultant propellant gases out of the rear of a launch tube. Today's best modern interpretation of such a weapon is the Swedish M2 Carl Gustav 84mm. Comparable weapons of the period included the famous Soviet RPG-7.

The M67 was born from design work in the 1960s and entered service in time to see combat action in the Vietnam War (1955-1975). The weapon system was essentially composed of a long, Bazooka-like launch tube with integrated sighting device (telescopic with stadia line rangefinding) and grip-handle trigger area. Due to its "recoilless" design, no complex recoil arrangement was needed which simplified both general operation and serial production of the weapon. A hinged assembly at the rear of the tube allowed access to the breech for reloading. Projectiles were 90mm in caliber was originally intended for anti-armor work but soon found to have value in tackling fortifications. An anti-personnel round also allowed for engagement of dug-in enemy troops at range. A standard M67 operating crew numbered three and a bipod and monopod support pairing was provided along the weapon's length. A heatshield served to protect the primary firer from the heat being generated by the launch tube during firing. Overall system weight was 38 lb with an overall length of 53 inches.

The 90mm projectile was issued as a single-piece munition and its spent shell casing was ejected from the rear of the launch tube after firing. Reloads were dependent upon existing in-the-field stocks. Rate-of-fire was one round-per-minute with five rounds-per-minute made possible under extreme circumstances. Maximum engagement ranges reached 2,300 yards. M371 designated practice projectiles while the M371A1 HEAT was the primary "High-Explosive, Anti-Tank", shaped-charge projectile. M590 served as the anti-infantry flechette round.

Despite its relative effectiveness on the battlefield, the M67 proved a cumbersome weapon being both long and heavy. Three crew had to be committed to the system for efficient function. As such, troopers generally favored their old, improved Bazooka forms (primarily the M20) which were far more portable and achieved similar results against infantry with its 60mm rocket projectile. Additionally, the M67's action resulted in a considerable (and dangerous) amount of back-blast which could end up endangering crewmembers or allied forces nearby. Despite this, the weapon maintained a battlefield role for decades after its adoption. It managed a frontline U.S. military presence into the mid-1970s though many were held in reserve or storage and still operated by specialist forces. From this point on, the M47 "Dragon" and Hughes TOW anti-tank missile systems took over the portable anti-armor role.

Beyond actions in the Vietnam War, the M67 saw use in the Salvadorian Civil War (1979-1992) where the U.S. supported the Salvadorian government. With the U.S.-led invasion of Afghanistan in 2001, the need for a portable anti-fortification/anti-personnel weapon became apparent once more and existing stocks of M67s were brought back in force, serving elements such as the storied 101st Airborne. M67 service continues today (2015) nearly 50 years since introduction of the weapon. Amazingly, as an anti-armor weapon, there is little information regarding its use or effectiveness again enemy tanks.

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Physical
The physical qualities of the M67 Recoilless Rifle. Information presented is strictly for general reference and should not be misconstrued as useful for hardware restoration or operation.
1,345 mm
52.95 in
O/A Length
1,345 mm
52.95 in
Barrel Length
37.48 lb
17.00 kg
Weight
Recoilless; Reusable Launch Tube
Action
90mm
Caliber(s)
Single-Shot; Reusable Launcher
Feed
Integrated Telescopic.
Sights
Performance
Performance specifications presented assume optimal operating conditions for the M67 Recoilless Rifle. Information presented is strictly for general reference and should not be misconstrued as useful for hardware restoration or operation.
5,576 ft
1,699.6 m | 1,858.7 yds
Max.Eff.Range
1
Rounds-Per-Minute
Rate-of-Fire
215 ft/sec
66 m/sec
Muzzle Velocity
Variants
Notable series variants as part of the M67 Recoilless Rifle Portable Anti-Infantry / Anti-Armor Weapon family line.
M67 - Base Series Designation
Operators
Global customers who have evaluated and/or operated the M67 Recoilless Rifle. Nations are displayed by flag, each linked to their respective national small arms listing.

Contractor(s): State Factories - USA
National flag of Afghanistan National flag of the Philippines National flag of South Korea National flag of the United States National flag of Vietnam

[ Afghanistan; El Salvador; Philippines; South Korea; South Vietnam; United States; Vietnam ]
1 / 1
Image of the M67 Recoilless Rifle
Image from the United States Army image archives.

Design Qualities
Some designs are single-minded in their approach while others offer a more versatile solution to requirements.
SPECIAL FORCES
Recognition
Some designs stand the test of time while others are doomed to never advance beyond the drawing board; let history be their judge.
Going Further...
The M67 Recoilless Rifle Portable Anti-Infantry / Anti-Armor Weapon appears in the following collections:
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