4x SAA Pmags for TM MWS

Best PMAG so far for the MWS platform. Well cared for and upgraded with genuine TM bolt stopper on three mags. 
The fourth has a modified bolt stopper in correct length. 

These are light weight, look great but are notorious for their slow leak. One has been modified with steel epoxy merging as to remedy this problem, however, the other three are standard and will as such slowly lose their gas. All valves and o-rings are freshly cleaned and lubed with tech sav.