Aviation & Aerospace - Airpower 2024 - Aircraft by Country - Aircraft Manufacturers Vehicles & Artillery - Armor 2024 - Armor by Country - Armor Manufacturers Infantry Small Arms - Warfighter 2024 - Small Arms by Country - Arms Manufacturers Warships & Submarines - Navies 2024 - Ships by Country - Shipbuilders U.S. Military Pay 2024 Military Ranks Special Forces by Country


Anti-Tank Rifle Grenade (ATRG)

Belgium | 1950

"The ENERGA anti-tank rifle grenade was of Belgian origination and adopted by several leading world powers of the period - including the United States and United Kingdom."

Authored By: Staff Writer | Last Edited: 09/26/2016 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site; No A.I. was used in the generation of this content.
With the arrival of the tank on World War 1 (1914-1918) battlefields, there proved a need to develop portable armor counters beyond traditional land mines and artillery pieces. Anti-tank rifles were the beginning and these were soon joined by rifle-launched grenades also intended for the anti-tank role. World War 2 (1939-1945) saw widespread use of rifle grenades and several anti-tank models were featured in the conflict (including anti-personnel forms). During the post-war years, with war against the Soviet Union (with their large fleet of heavily-armored tanks) a very real possibility across Europe, the "ENERGA" Anti-Tank Rifle Grenade emerged from Belgium. Its design was attributed to Edgar Brandt, the same French engineer responsible for the famous line of Brandt infantry mortars which were widely adopted and copied the world over. Production was handled by Mecar SA and service entry was during the early 1950s. The weapon was adopted by several foreign military powers including the United States and Great Britain.

The ENERGA rifle grenade was given a missile-style form with a conical warhead, rounded, tapering body, cylindrical tail section and finned tail arrangement. The fins added the needed stability during the grenade's flight path. The warhead filling consisted of 314 grams of Pentaerythritol Teranitrate - otherwise abbreviated as "PETN" - which gave the grenade considerable explosive power. Penetration of armor was rated up to nearly 8 inches thick - though environmental factors and angle of attack were key considerations. Overall weight reached 765 grams and the grenade featured a length of 425mm with a diameter of 75mm. Effective range was approximately 100 meters.

Such anti-tank weapons were not strictly limited to armor-defeating use for their penetration values and damage capabilities proved capable of engaging fortified structures as well - suitable for tackling dug-in foes under concrete protection. Beyond the standard ENERGA grenade form there was the "Super ENERGA" which added a small rocket booster element, increasing engagement ranges and penetration values.

In the U.S. Army inventory, the Belgian ENERGA became the "M28" and these were in action during the Korean War (1950-1953) when it was discovered that World War 2-era anti-tank rifle grenades then in service proved lacking against stouter Soviet-originated tank armor used by the North Koreans and China. Similarly, the weapon was adopted by the British Army under the designation of "Projector No. 4, Rifle, Mk V". South Africa produced a localized, slightly modified ENERGA form as the "R1M1" under the Denel brand label. These featured the same penetration value as the Super ENERGA but held a much lower effective range of just 75 meters (as opposed to 200 meters). For the Americans, the M28 was succeeded by the M31 HEAT rifle grenade. Anti-tank rifle grenades like the ENERGA were largely superseded by more potent, man-portable, shoulder-fired weapons like the disposable M72 LAW or reusable 84mm "Carl Gustav" which could engage both armor and fortifications with greater power. These weapons did, however, require line-of-sight fire.

The ENERGA name stemmed from the Liechtenstein design concern of "Anstalt fur die ENtwicklung von ERfindungen und Gewerblichen Anwendungen".

Content ©MilitaryFactory.com; No Reproduction Permitted.
The physical qualities of the Mecar ENERGA. Information presented is strictly for general reference and should not be misconstrued as useful for hardware restoration or operation.
425 mm
16.73 in
O/A Length
425 mm
16.73 in
Barrel Length
1.69 lb
0.77 kg
Single-Use; Impact Detonated
Performance specifications presented assume optimal operating conditions for the Mecar ENERGA. Information presented is strictly for general reference and should not be misconstrued as useful for hardware restoration or operation.
656 ft
199.9 m | 218.7 yds
246 ft/sec
75 m/sec
Muzzle Velocity
Notable series variants as part of the Mecar ENERGA Anti-Tank Rifle Grenade (ATRG) family line.
ENERGA - Base Series Name; 200mm armor penetration with 100 meter effective range and 300 meter maximum range.
"Super ENERGA" - Rocket-boosted variant; 275mm armor penetration with 200 meter effective range and 550 meter maximum range.
R1M1 - South African Variant; production by Denel; 720g weight with 275mm penetration, 75 meter effective range and 375 meter maximum range.
Projector No.4, Rifle, Mark V - British Army Designation
M28 - U.S. Army Designation
M29 TP ("Training Practice") - U.S. Army training version of the M28.
Global customers who have evaluated and/or operated the Mecar ENERGA. Nations are displayed by flag, each linked to their respective national small arms listing.

Contractor(s): Mecar SA - Belgium
National flag of Bangladesh National flag of Belgium National flag of India National flag of South Africa National flag of the United Kingdom National flag of the United States

[ Bangladesh; Belgium; India; South Africa; United Kingdom; United States ]
1 / 1
Image of the Mecar ENERGA
Image copyright www.MilitaryFactory.com; No Reproduction Permitted.

Design Qualities
Some designs are single-minded in their approach while others offer a more versatile solution to requirements.
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 Mecar ENERGA Anti-Tank Rifle Grenade (ATRG) appears in the following collections:
Disclaimer | Privacy Policy | Cookies

2024 Military Pay Scale Military Ranks U.S. DoD Dictionary Conversion Calculators Military Alphabet Code Military Map Symbols US 5-Star Generals WW2 Weapons by Country

The "Military Factory" name and MilitaryFactory.com logo are registered ® U.S. trademarks protected by all applicable domestic and international intellectual property laws. All written content, illustrations, and photography are unique to this website (unless where indicated) and not for reuse/reproduction in any form. Material presented throughout this website is for historical and entertainment value only and should not to be construed as usable for hardware restoration, maintenance, or general operation. We do not sell any of the items showcased on this site. Please direct all other inquiries to militaryfactory AT gmail.com. No A.I. was used in the generation of this content.

Part of a network of sites that includes Global Firepower, WDMMA.org, WDMMW.org, and World War Next.

©2024 www.MilitaryFactory.com • All Rights Reserved • Content ©2003-2024 (21yrs)