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UAC Ultra Lightweight Aluminum Blowback Housing for TM Hi-Capa Series Airsoft GBB Pistols - Silver

ID: 51971 (UAC-TM-00015)
4.0 stars, based on 2 reviews
UAC Ultra Lightweight Aluminum Blowback Housing for TM Hi-Capa Series Airsoft GBB Pistols - Silver
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The UAC Ultra Lightweight blowback housing for TM Hi-Capa series gas pistols is precision CNC machined from aircraft grade 6061 aluminum for ultimate durability and quality. Weighing in at just 18.24 grams, this blowback housing will improve the cycling action as well as gas efficiency.


  • CNC machined 6061 aircraft grade aluminum
  • Ultra lightweight design
  • Durable construction prevents flexing and warping under hard use
  • Improved gas efficiency
  • Smooth cycling and fast blowback
Compatibility: For Tokyo Marui Hi-Capa and other similar Airsoft GBB Pistols
Material: 6061 Aircraft Grade Aluminum
Package Includes: Blowback Housing

Manufacturer: Ultimate Airsoft Custom (UAC)

Disclaimer: Please use discretion when installing custom parts as fit and compatibility may vary. Some modification may be required. Professional installation recommended.

2 Customer Reviews

(Write a review)

by Guilherme T. on 08/11/2017
"This is an upgrade part, not stock one. To use this, you have to buy the UAC Aluminum Loading Nozzle (I bought also the UAC Alum. Nozzle Valve and the UAC Alum. Valve Blocker) to fit perfectly; use the original TM nozzle valve spring.
It seems to be durable compared to original parts.

Pros: Lightweight, better construction, fits perfectly on a Airsoft Masterpiece Aluminium Slide (for my TM Hi-Capa),

Cons: You have to buy all other parts from UAC to use this Blowback Housing.
by Robert N. on 06/08/2017
"Well if nothing else this part is a bit of a mixed big. The description is fairly lack luster in regards to giving potential buyers the information they may want to know about before buying this blowback housing. The description for this piece says that it will fit inside of a Tokyo Marui Hi Capa slide but fails to provide helpful details when mentioning other "similar pistol models." I can see a lot of people buying this blowback housing and then trying to fit in inside their slide only to find that it doesn't fit properly. If this is the case for you will need to grind the outer surface down with a dremel to get it to fit right (I say using dremel because using anything other than a tool will take hours or grinding make it fit properly). Also you may need to replace the loading nozzle as well because the stock nozzle cannot fit properly around the cylinder in the blowback housing due to its size.

As far as the improvements to performance goes I have yet to determine how good of an upgrade it is. I have only recently begun to use this part after grinding it down enough to fit inside my gun. It certainly works like the stock blow back housing but I can't say that it works as drastic improvement.

I'd say that this blowback housing is average at best. Possibly even lover if you lack the tools to effectively fit needed to resize this part if it can't fit in your slide without modifications to it.

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