LONG 1.3mm 180mm M4A1/SCARv2/UMP45/MP5V2/GEN9,10/HK416 , UPGRADE SPRING GEL GUN BLASTER : Beastpro Upgrade
M4A1/SCARv2/UMP45/MP5V2/GEN9,10/HK416/V2.0 GEARBOX + many more
MORE FPS (BEST USE METAL GEARS)
We have done all the hard work and spent a lot of money in research for you and these parts that I am now selling are the best and will be the right type of upgrade that will give you the best benefits. These parts are limited so first in first served.
180mm (L) X 14mm (W)