CowCow Match Grade Stainless Steel Magazine Release Catch - Black Gunsmith Bros Attach the AEG buffer tube

Attach the AEG buffer tube of your choice onto the adapter and tighten it until snug

the one with 300mm barrel always need harder spring to achieve same J/FPS than longer barrels

Screw in the insert and feed through your fcu cable

●Easy to adjust Hop up without remove the slide

High efficiency compression spring

CowCow Match Grade Stainless Steel Magazine Release Catch - Black Gunsmith Bros Attach the AEG buffer tubeMatch Grade Stainless Steel Mag Release Highlighted features CNC machined stainless steel construction Drop in upgrade component Titanium Nitride (TiN) treated finish for greatly improved durability and smoother operation Durable construction for IPSC shooter use For TM Hi CAPA