A G&G SRS CM16 M4 Rifle replica by G&G made as a part of the  Combat Machine project whose aim is to deliver high-quality replicas at a price that may be considered economic. Combat Machine replicas are characteristic for their highest, distinctive G&G products craftsmanship, reliability and high quality of materials used. The main factor that allows reducing the price is the use of a high-quality glass fibre reinforced polymer instead of metal.

Polymer parts include the body, pistol grip, stock and muzzle device. Metal parts on the other hand include KeyMod handguard, outer barrel, spring slide, latches and the majority of small elements.

The replica is perfect for operating on a medium range with a muzzle velocity of ~320 FPS. The implemented top RIS rail allows for the attachment of an optical sight, whereas a multi-position stock, which holds the battery, allows for adjustment of the replica to the preferences of an individual user. The set includes a kit of flip-up iron sights.