New Protek Softair PULSE HI-CAPA M4 €100.00 HPA adapter in M4 bent version for HI-CAPA MARUI magazine. Pulse is an ergonomic HPA magazine adapter. A bbs retention system is also present. The M4 version of the PULSE adapter is based on the EPM1-S magazine (compatible with other brands). Compatible with most magwells on the market (Magwell AIP GUNDAM and HUGH AM not compatible). Guaranteed... Add to cart