Brothers In Arms Kalashnikov AK74U Semi-Auto 4.5mm BB CO2 Replica Air Rifle
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The AK74U takes the already famous AK74 lineage and shrinks it into the compact little brute that turned up everywhere from armoured vehicle crews to, well, anyone who needed something short, loud and unmistakably Soviet. The real ones were developed in the early 70s by Mikhail Kalashnikov as part of the same programme that replaced the AKM. They first saw action during the 1979 Afghanistan conflict, and the rest is Cold War history. The design went on to spread through former Soviet states, Eastern Bloc militaries and pretty much any third world force with a shopping list and a budget.
This replica follows the same approach. It is not trying to be a polished show pony. It is built to feel and handle like the gun it is mimicking, which means the wood furniture is intentionally rough and the finish marks with normal use. That is not a flaw, it is the whole point. If someone wants a pristine, glass smooth toy, this is not going to make them happy. If they want something that looks and behaves like a 70s Soviet carbine, they are in the right place.
Powered by a single 12 gram CO2 capsule, it delivers about twenty shots at roughly 400 fps. The magazine holds 18 steel BBs and the weight sits just over 3 kg, so you are not getting some hollow featherweight. Collectors, reenactors or anyone who just enjoys owning a slice of Cold War aesthetic will get a kick out of it. It also makes a great wall hanger, assuming you have confidence in your brackets.
Specifications
Action: Semi-auto CO2
Calibre: 4.5 mm steel BB
Power source: 1 × 12 g CO2 capsule
Shot count: Around 20 shots per capsule
Magazine capacity: 18 BBs
Velocity: Approximately 400 fps
Stock: Folding with Wood furniture (intentionally rough like period originals)
Weight: Just over 3 kg
Finish notes: Marks and wears like a real AK from the era by design
Important — read before purchase or storage.
All CO2 and green‑gas/propane powered guns and magazines are pressure systems and must not be stored pressurised for any length of time outside active shooting. Leaving gas installed will compress internal seals, accelerate permanent leaks, and shorten the life of your gun.
Temperature & Pressure Behaviour
CO2 and propane are temperature‑sensitive: they expand and contract with temperature changes. That expansion can force gas past worn seals or, in extreme heat, rupture seals or valves — creating dangerous failures. Keep guns and magazines out of direct sunlight and away from heat sources. Cold temperatures reduce pressure and can cause low power or feed problems, so always test a gas gun in the conditions you intend to use it.Always remove or fully vent gas after use. If you’re not shooting, remove the CO2 capsule or vent/empty magazines. Do not store with gas installed.
Lubrication Recommendations
To protect internals and seals we recommend using gas with added lubricants:-
CO2: use lubricated CO2 capsules — UMAREX branded CO2 is our recommendation.
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Green Gas / Propane: use gas with added lubricant such as Vorsk, UltraAir, Nuprol, or Abbey (Green Gas).
Seal & Lubricant Guidance
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Apply one drop of silicone oil (for polyurethane seals only — usually green or clear seals) to the tip of every 5 CO2 capsules or before long‑term storage to lubricate the piercing nozzle and protect seals.
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For silicone seals (typically semi‑translucent white), only use PTFE‑based lubricants (e.g. Super Lube PTFE). Do not use silicone oil on silicone seals.
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Never use gas cartridges showing rust or visible corrosion.
Leak Expectations & User Responsibility
All gas systems will slowly leak over time. Proper care reduces the rate of leakage but cannot prevent it entirely. Leaving cartridges installed dramatically speeds up seal wear. By using or storing gas guns you accept responsibility for regular maintenance, correct lubricant use, and safe storage.We Test Before Sale
We test every gas‑powered gun prior to dispatch or handover for major leaks and function. This may mean the gun arrives with gas installed — you may choose to use this free gas or vent the gun before storage. Testing does not guarantee seal life or prevent future leaks; seals remain consumable parts.If you’re unsure about seal types, lubricant compatibility, or safe storage, ask us before purchase — we’ll give honest guidance. Failure to follow these recommendations may void warranty or return eligibility where damage is caused by improper storage or lubrication.
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