Dynamic Precision Ultra Lightweight Aluminum Blowback Housing for ISSC M22, SAI BLU, Lonewolf, & Compatible Airsoft Gas Blowback Pistols

"Complete drop In part with a pgc aluminum slide kit in my Marui G17. Much lighter than the stock housing which improved the cyclic rate of fire. Works great paired with the aluminum nozzle. Great part!

"2/5 stars, why? Because the cylinder bulb, otherwise seen as the hollow part behind the O-ring piston head, was plastic for me. Not aluminum like advertised. If you want to see what the cylinder bulb looks like, it's on the DP hi-capa BBU, weird.

The piece, when coupled with a curved guarder nozzle for my Tokyo Marui G34, encountered a lot of resistance and couldn't function properly even with a new nozzle and a LOT of silicone oil. The G17 and G34 have compatible parts too, but that doesn't change the fact that either this is falsely advertised, or I got ripped off.

But... I still give it 2/5 because I believe with a dremel, the thick cylinder bulb can be shaved down to give more leeway to the nozzle and decrease resistance so that the nozzle can work (the nozzle return spring didn't help either). Will go and talk to some people about what I can do, but for now. I'd wait on buying this and stick with the CowCow blowback unit, even though it ships from Hong Kong and may take a while.

Overall a little disappointed that it didn't work and dumped all my gas when I tried to fire it in quick succession with a short stroke kit and stronger nozzle return spring. Will try to make it work.