MK23 Magazines / Extensions

HK German Mark 23 & SOCOM 12 Round .45 Cal Magazine New factory fresh German HK manufactured. The real deal steel-bodied factory fresh magazine with the upgraded maritime finish. Compatible With: HK Mark 23 SOCOM .45

Magazine Extension - +10 - HK USP .45 & Mark 23 Easy to install. Simply add the mag extension to your existing mag body and follower. No gunsmithing needed. Made 100% in the USA out of aircraft-grade hard coat anodized aluminum with steel hardware...

HKP HK Mark 23 Extended Magwell The HKP MK23 extended magwell improves upon the factory design with a larger opening and additional, textured grip area.  That translates to faster mag changes and better control of the pistol, especially when wearing...