Makeshift Fire Extinguisher RPG Warhead

In December images of Chechen volunteers fighting with the Ukrainian Armed Forces began to feature an interesting craft-made weapon – an RPG munition made from the body of a small fire extinguisher. 

These RPG-warheads improvised from fire extinguishers have appeared in numerous videos and photographs of the Sheikh Mansur Battalion. The battalion was formed back in 2014 and is made up of exiled Chechens who reject Russian control of their region. The battalion itself is named after an 18th century Chechen military leader Sheikh Mansur. The battalion had disbanded in 2019, but reformed in March 2022 following the invasion. Since then they have reportedly seen action during the Battle of Kyiv, in the Donbas, during the Battle of Sievierodonetsk and most recently in the fighting around Bakhmut. 

There’s a long history of improvised warheads adapted for launch from the RPG-7 but I think this is the first time I’ve seen a fire extinguisher body used, at least in this phase of the fighting in Ukraine. 

A section of the Sheikh Mansur Battalion, with a craft-made fire extinguisher munition, Bahkmut, December 2022 (via Sheikh Mansur Battalion)

It appears that the fire extinguisher body has been emptied and filled with whatever explosive and shrapnel material is readily available and then adapted to fit the sustainer motor and booster assemblies. They appear to use V-429 or V-429E point detonating fuzes. These fuzes were developed for use on high explosive (HE) projectiles used by various Combloc weapon systems including the T-12 and MT-12 100mm anti-tank guns and the 115mm main gun of the T-62 and 125mm main guns of the T-64, T-72, T-80 and T-90 series tanks. Some other fuzes appear to be used too but conceivably any impact fuze would work. The inertia armed fuzes normally arm within 5-15m of the muzzle once fired from a conventional barrel. It appears that the fuzes have been epoxied into place.

Close up of a craft-made fire extinguisher munition, Bahkmut, December 2022 (via social media)

How the mass and shape of the improvised round impacts the velocity of the warhead once it is fired is unclear. But Bild correspondent Bjorn Stritzel, who recently met with members of the Battalion while writing an article about them, told me that the range of the warheads is about 100m. He noted that the Chechen’s have found them to be ‘very effective in Bakhmut’ and that ‘apparently its firepower surprised RF entrenched in houses’ according to radio chatter picked up by the Battalion. 

While we don’t have a perfect close up of them the extinguishers themselves appear to be small 2kg (or 5lbs) units which contain powder. From a quick survey of some Ukrainian websites which sell the extinguishers, the price of these ranges between 300 and 500 Hryvnias (or $8 & $14).

A member of the Sheik Mansur Battalion demonstrates a craft-made fire extinguisher munition, Bahkmut, December 2022 (via Sky News)

The fire extinguisher rounds are probably being used as anti-personnel weapons which would be fitting for the sort of fighting occurring around Bakhmut where the majority of the imagery is said to be coming from. The thin steel body of the extinguisher may provide suitable fragmentation or depending on the metallurgy it may just rupture. According to Stritzel the filling of the warheads is around 50% explosive and 50% shrapnel material. He also noted that the Chechen’s described the warhead as being “three times more powerful than a normal OG-7V [fragmentation RPG-7 round]”. 

Two craft-made fire extinguisher munitions, Bahkmut, December 2022 (via Bjorn Stritzel)

The first video featuring the improvised warheads was published by the Sheikh Mansur Battalion on their social media in around mid December. In a Sky News report from the 22 December, a member of the Battalion demonstrates how one of the extinguisher warheads is loaded. A video posted to the Battalion’s social media on the 27 December showed a number, perhaps four, of the improvised rounds stacked ready for use with booster assemblies attached. 

On the 31 December, the Battalion shared a photograph of a group of eight Battalion members, one of which can be seen holding an RPG-7 with one of the improvised extinguisher rounds loaded. During the second week of January, a short, undated, video of an individual in a fighting position firing one of the craft-made warheads was shared. We get some idea of the weight of the round in this clip.

The most recent video (see stills above), posted on TikTok, on the 12 January, shows two of the improvised munitions being fired. These warheads follow the same design but differ slightly in that the fire extinguisher body appears to have been cut open at the centre and then welded back together. Perhaps this is done to easier fill the munition or perhaps to shorten a longer extinguisher body. For the first time we also get to see the explosion of the rounds down range. This video again gives us a good indication of the weight of the round from the movement of the shooter. It also illustrates the distances the rounds can travel. Notably it appears to be used here against a Russian field work rather than against a building.

With fighting continuing in Bakhmut we are likely to see more of these improvised fire extinguisher rounds in use, especially if they are as effective as the Sheikh Mansur Battalion suggest.


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Bibliography:

V429 Fuze, CAT UXO, (source)

V429E Fuze, CAT UXO, (source)

‘They prefer death to Russian torture’, Bild, (source)

The Chechens fighting Putin in Ukraine, Sky News, (source)

Northern Ireland Sterling Clone

From the late 1960s into the 1990s, Northern Ireland suffered a long period of sectarian violence, commonly known as The Troubles. Without going into too much detail about the conflict, other sources do a much better job than I can today, the violence saw Irish Republican paramilitary groups, Ulster Loyalist paramilitary groups and British security forces involved in a protracted low-level conflict with a Republican insurgency fighting not just British forces but Loyalist paramilitaries like the Ulster Volunteer Force (UVF), the Ulster Protestant Volunteers (UPV) and the Ulster Defence Association (UDA). This article/video has no intention to comment on the conflict itself, merely examine a weapon produced during the period.

This copy or clone of a Sterling Mk4 / L2A3 submachine gun is believed to have been assembled by Loyalist paramilitaries although which group and its origins are unclear. Loyalist groups during the 60s and 70s tended to be less well armed and relied more heavily on improvised small arms and weapons stolen from military and police armouries and personnel than Republican groups. When tensions rose in the late 1960s, the Loyalists were largely equipped with obsolete and outdated weapons.

Right side view of the Sterling clone (Matthew Moss)

Sammy Duddy, a member of an early Loyalist group, the Westland Defence Association, and later a press officer for the Ulster Defence Association, recalled the dire state of their arsenal at that time:

“[…] we had no guns. The IRA had automatics [machine-guns], high-velocity sniper rifles, powerful pistols, the lot, but we had fuck all. There were virtually no guns on the Loyalist side. The only weapons we had were baseball bats and I just thought to myself, ‘what the fuck are we going to do when they [the IRA] come in with their machine-guns? Throw bats at them?’”

The Ulster Volunteer Force (or UVF) took to stealing what weapons and spare parts they could from the British military and Royal Ulster Constabulary. Weapons assembled from damaged captured Sterlings and Sterling spare parts kits became common. In this case, this weapon has a number of cannibalised original Sterling parts which have been paired with a craft-made receiver tube. From examination we can see that the weapon’s end cap has a Sterling part number stamp ‘CR110’ inside. Similarly the weapon has a factory-made plastic grip. Other factory made parts include the helically grooved bolt, the two recoil springs and the charging handle. There is also seemingly a factory-made trigger group and magazine release button. The magazine is well sized and utilises various parts from a Sterling’s magazine release including the button, an set screw and catch piece.

The weapon uses a Sterling’s factory-made pistol grip and trigger mechanism – a remarkably sophisticated craft-made weapon (Matthew Moss)

The trigger assembly housing is welded and ground smooth where it joins with the tube receiver. On factory-made guns there is a visible seam. The poorer quality tube steel of the receiver also appears to have drooped or bent a little around the middle of the weapon. The holes in the barrel shroud are of uniform size but they are roughly drilled and not equally spaced. At the front of the receiver we can see they have retained the barrel with a pair of large bolts, suggesting that the barrel may have been factory made too. There is now end cap catch at the rear nor provision for a folding stock either. While whoever made the receiver tube went to the trouble of added hand stops found on the actual Sterling they are clearly only lightly welded on.

Close up of the weapon’s magazine housing, with salvaged Sterling magazine release button (Matthew Moss)

Another difference is the absence of a bayonet lug on the left side of the barrel shroud, and a much cruder fixed sight sat within a U-shaped piece of metal welded to the tube receiver – to act as a front sight protector. The factory-made Sterling’s front sight is adjustable and the sight protectors are folded forward and aligned across the tube receiver. The rear sight and its protectors appears to have sheared off at some point. The only marking on the weapon, ‘29992’, is crudely electro pencilled on the top of the magazine housing, where you’d normally see markings saying ‘Sterling Mk4’ or ‘L2A3’. When that crude serial number was added is unclear. The black paint on the receiver is wearing thin and we can clearly see some file marks in places.

Hundreds of craft-made submachine guns were built to feed from Sterling and Sten magazines and there are numerous surviving examples of guns made from box tubing – often parts were clandestinely made in Northern Ireland’s factories and at shipyards like Harland & Wolf in Belfast – giving rise to the name ‘shipyard special’. Other nicknames included ‘rattlers’ and table leg guns.

Left side view of the Sterling clone (Matthew Moss)

The origins and story behind this particular weapon remain unknown, it is today part of a UK Ministry of Defence collection and said to have been found in Northern Ireland during the Troubles. Regardless it’s a very interesting piece of clandestine engineering which shows considerable skill in its assembly. Which is unsurprising as there are numerous accounts of skilled machinists working on illegal firearms parts during the period.

If you enjoyed this video and article please consider supporting our work here. We have some great perks available for Patreon Supporters. You can also support us via one-time donations here. Thank you for your support!


Bibliography:

The Northern Irish troubles | This Week | 1972, Thames TV, (source)

Terminal Effects: The Guns of the Loyalist Paramilitaries, Balaclava Street, (source)

Improvised Weapons of the Irish Underground (Ulster), D. Shea, Small Arms Review, (source)

Beyond State Control: Improvised and Craft-produced Small Arms and Light Weapons, G. Hays and N.R. Jenzen-Jones, Small Arms Survey, (source)