The APS SPB-60 (similar to SPB-45) refillable standard 60g cylinder fires around 200 rounds on APS RAM R and S series. This cylinder is constructed with a steel casing. The on/off switch is standard at the end. This cylinder fits our standard M4 buttstock.
Rechargeable Cylinder with 60g store capacity, adaptable to R-series, S-series, A-series and B-series, Fit in M4A60 & M4A61 Stock
Weight: 1.40 lbs or 780g
Length: 10.5" or 25cm
Diameter: 1.5" or 3cm