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Airsoft Pistol Blowback Units & Piston Heads

The blowback unit and piston head drive the slide back after every shot, giving your gas pistol its recoil and cycling the next round. Upgrading them gives a snappier, more consistent blowback and better gas efficiency.

We stock blowback housings, piston heads, buffers and short stroke kits for the AAP-01 and Hi-Capa from TTI, Cow Cow, NexxSpeed and Hadron.
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Frequently Asked Questions

Need To know more?

What does a blowback unit do?

It uses gas to drive the slide back after each shot, creating recoil and cycling the pistol for the next round.

Why upgrade the piston head?

Upgraded piston heads seal better and last longer, improving gas efficiency and giving a more consistent blowback.

What does a short stroke kit do?

It shortens the slide's travel for a faster cycle and higher rate of fire, mainly on full-auto pistols.

Will AAP-01 parts fit a TM G18C?

Some do, such as the TTI piston head, but not all. Check each product listing for compatibility.

Why Upgrade the Blowback Unit?

Stock blowback units are often plastic and can wear or crack, especially on full auto or with stronger gas. CNC aluminium housings and upgraded piston heads seal better and last longer, improving gas efficiency and giving a more consistent cycle.

AAP-01 Upgrades

Popular AAP-01 upgrades include the Cow Cow blowback housing, Cow Cow enhanced piston head, TTI piston head (also fits TM G18C) and Cow Cow stainless back lock. See all AAP-01 parts.

Short Stroke Kits and Buffers

Short stroke kits shorten the slide's travel for a faster cycle and higher rate of fire on full auto. Try the TTI CNC short stroke kit, Hadron short stroke buffer or NexxSpeed short stroke buffer. The Cow Cow aluminium buffers also help absorb impact.

Hi-Capa Upgrades

Hi-Capa owners can fit the NexxSpeed CNC blowback unit or the TTI "Hot Wheels" zero friction housing. See more Hi-Capa upgrades.

Related Parts

The blowback unit works with the loading nozzle and recoil spring, so see our loading nozzles, recoil springs and guide rods. Need fitting? Contact our tech team.
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