Rocket Airsoft M130 AEG Spring - Japanese Black Steel Chargers and Battery Accessories This is an advanced magazine

This is an advanced magazine specifically made for this gun

but there's a different bigger wheel specifically made for those

BBs are "eco-friendly" out of a PLA mix of non-toxic and non-synthetic materials

The Combat Machine CM16 (M4) Carbine is G&G Armament's awesome airsoft gun modeled after the M4 carbine

Rocket Airsoft M130 AEG Spring - Japanese Black Steel Chargers and Battery Accessories This is an advanced magazineRocket Airsoft M130 AEG Spring Japanese Black Steel. One of our most popular airsoft upgrade springs! Very high quality steel made spring to get your gun running above 400 FPS (420 430 approx). Fits in all standard gearboxes. This is your heavy upgrade spring strength for custom upgrades. (please note: packaging may be generic or labeled as 'Rocket Airsoft', but is made by SHS OEM) This is a non linear spring utilizing Japanese made steel spring