Nine Ball 6.03mm Hand Gun Barrel for Marui Model 19 Gen 3 GBB (87mm) Accessory-Type_Hand Stop If you have a stock

If you have a stock gun and trigger

Silverback QD Rail Mount for SRS Handguard

Rotary Bolt handle allow opening the bolt cover simulating the real gun movement

10 spacers included for fine tuning

For Maruzen APS-2 / Type 96 / M24 Series Airsoft Sniper Rifle

Nine Ball 6.03mm Hand Gun Barrel for Marui Model 19 Gen 3 GBB (87mm) Accessory-Type_Hand Stop If you have a stockNine Ball 6. 03mm Hand Gun Barrel for Marui Model 19 Gen 3 GBB (87mm) Metal Construction Precision Barrel at 6. 03mm Diameter Built for extra power and precision shooting Designed to increase the FPS of your Pistol Suitable For Tokyo Marui Model 19 Gen3 Series Airsoft Gas Blow Back GBB Pistol