English 
Nederlands 
Complete Hop-Up CNC chamber for the M4 / M16
Specna Arms is a well-known brand on the airsoft market. To meet customer expectations, we introduce high-quality internal parts as separate products. From now on, pistons, cylinders, nozzles, gearbox shells and much more will be available for sale. This will allow you to get the maximum performance of the replica. Specna Arms never lags behind – it is constantly developing and improving its products to provide customers with optimal solutions in the airsoft field.
Accurately made of CNC machined aluminum, rotary Hop-Up chamber intended for M4 / M16 replicas. The set also includes a pressure spring, hop-cup rubber, and a latch for the barrel.
