Guarder Light Weight Nozzle Housing for ISSC M22, SAI BLU, Lonewolf & Compatible Airsoft Gas Blowback Pistols

"Perfect drop in fit for Tokyo Marui G-22 with no modification whatsoever. Just make sure you use the piston screw that came with the kit (not the same as the original TM part) Adds a little detail and realism in the rear slide cover which comes as a separate piece and make it look like the real steel version. The TM nozzle has no issue sliding in and glides smoothly into the blowback unit and sits flushed with the TM slide. There was no binding nor hang ups when you pull and let go of the slide and still maintains that Tokyo Marui proprietary clicking sound when you rack the slide. What is most impressive is the noticeable gas efficiency and snappy blowback and combined with a short stroked recoil spring guide set - you'll be in for a treat. Weighing in at 20 grams, this is definitely way lighter than the stock BBU (40 grams lighter) and for the money, you can't beat it. Will need modifications on We Tech G series but then, you will not notice a huge difference because the We Tech slide itself is heavy. Highly recommended.and a must for TM Glock pistol upgrade. 5 stars for me.

"Drops straight into marui 17 and pgc 17 slide no mods required.

This isnt the lightest 'light weight' BBH on the market, but the price was right and no tool time, cant complain at all.

"Got this for the WE G17. Not exactly a drop in, then again, it wasn't made for WE. Either way, it still installed and functioned without the need for any modifications. Many gripes about this BBU though. at the butt plate of the BBU, theres a little piece that juts out downwards that is the source of friction between the lower frame and the BBU (This is why I'm saying it's not a drop in unit). Another little problem is that if you are thinking about installing a Angel Custom red piston head, don't do it. The BBU's little tube that centers the piston head is just .5mm out of tolerance and just wont fit. Good news is that the stock WE piston head fit just fine. The unit makes the slide real snappy and low recoil. Definitely a great upgrade.