Action Army AAP-01 Gas Route Seal

Gas leaves the magazine, travels a route through the frame, and reaches the nozzle. Everywhere it passes a joint, something has to seal. When that seal hardens, the pistol loses the sharpness it had when it was new and starts behaving badly in the cold.

This is Action Army’s own part for their own pistol, listed under their part number 76.

If your AAP-01 has done a season and is not what it was, this is a few pounds well before a magazine is.

Specifications

Good to know before you buy

Replace it before you replace a magazine. A pistol that has gone soft is more often the gas route than the magazine, and the price difference is considerable.

This part is sometimes listed elsewhere under the wrong description. Their page shows text belonging to the Black Mamba upper receiver kit. The part itself is the gas route seal, which is what we have listed here.

It is one seal, not a kit. If you want everything in the gas path refreshed, the magazine lip set is a separate part we also stock.

No material is published. Action Army give the part number and the name and nothing further.

Frequently asked questions

What does the gas route seal do?
It seals the path gas takes from the magazine through to the nozzle.

What is part 76?
Action Army’s own part number for this seal in the AAP-01 exploded diagram.

My pistol is weak in the cold. Is this the fix?
It is the first thing to try, along with a fresh magazine lip set. Cold performance on gas is never perfect, but a hardened seal makes it much worse.

Is it the same as the magazine lip set?
No. The lip set covers parts 75 and 76 at the magazine; this is the gas route seal in the pistol.

Is it hard to fit?
It is small and fiddly rather than difficult. Work over a tray.