BBF Airsoft M4 Upper Receiver Shim Kit For Tokyo Marui MWS GBB Airsoft Rifle

BBF Airsoft AM4 Upper Receiver Shim Kit For Marui MWS GBB Airsoft Rifle Metal Construction Airsoft Upper Receiver Shim Kit A receiver shim kit is a set of shims that are used to adjust the fit of a your Airsoft Gun receiver to the stock or the barrel Various thicknesses to allow for precise adjustments The receiver shim kit is often used to correct misalignment between the receiver and the stock, or to improve the overall fit of the firearm for better accuracy and comfort Suitable For Tokyo Marui MWS Series Gas Blow Back GBB Rifle Airsoft Rifle Also Fit For GHK/ VFC/ WA/ WE M4/ AR-15 Series Gas Blow Back GBB Rifle Airsoft Guns This shim set comes in the following sizes: 0.05mm/ 0.1mm/ 0.2mm