- Machined aluminum construction
- Small openings and thick wall to greatly reduce gas flow to decrease muzzle energy ( Less about 30% )
- 0.25mm spring included, enhance the overall reaction
- Suitable for ( Umarex / VFC ) G36 / HK416 / M4 / MP5 / UMP GBB Series
If use on UMP V2 GBB, please use original spring
This product was added to our catalog on Saturday 28 September, 2013.