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

Maglula Universal Magazine Loader The UpLULA mag loader is a military grade-quality universal pistol magazine loader and unloader designed for loading and unloading almost all 9mm Luger up to .45ACP magazines, single and double stack, and 1911's of all...

HKP HK USP .45 ACP/Mark 23 +5 Magazine Extension Super easy to install, simply add the mag extension to your existing mag body and follower. An easy 2 minute swap, no gunsmithing needed. Made in the USA out of aircraft grade hard coat anodized aluminum...

HKP/H&K 17 Round HK Mark 23/USP .45 ACP Complete Magazine Each mag comes fully assembled and ready for use. HK Parts takes an existing German HK 12 round mag coupled with the +5 mag extension and assembles them into a complete 17 round mag. What you...

HKP HK USP .45 ACP/Mark 23 Enhanced Magazine Extension Kit +5 HK Parts USP .45/Mark 23 enhanced +5 magazine extension. Our design represents a symbiotic balance of form and function. The added grooves enhance dexterity during those quick mag swaps while...

Mark 23/USP .45 - 22 Round Magazine Complete  HK Parts takes an existing 12 round mag the +10 mag extension and assembles them into a working 22 round magazine. This offering is a valuable option for those that need a backup ultra capacity magazine...

HKP 17 Round HK USP .45 ACP/Mark 23 Enhanced Magazine - Black Our 17 round magazine starts life as a factory HK 12 round magazine then gets a capacity bump with our +5 mag extension. Compatible With: HK USP .45 HK Mark 23

USP .45 & Mark 23 SOCOM Magazine Follower A great spare to have on hand as this is a wear and replacement item.  Compatible With: HK USP 45 ACP 10 Round HK USP 45 ACP 12 Round HK USP .45 Tactical, Elite, Expert HK Mark 23 10 Round HK Mark 23 12...

HK Mark 23 12 Round Magazine Floor Plate A great item to have on hand as the floor plates can become cracked and broken with use and time. Compatible With: Mark 23 12 round mags SOCOM Mark 23 12 round mags

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...

10 Round HK USP/Mark 23 .45 ACP, P30 .40 S&W Magazine Spring  A must-have spare part, as magazine springs are prone to wear and tear. Compatible With: HK USP .45 10 round HK USP .45 Tactical 10 round HK Mark 23 10 round HK 9mm & 40 cal P30...

Universal Extended Magazine Spring For HK Parts Extensions. This universal extended magazine spring fits most of our extensions from the VP9 to the Mark 23 extension kits. These are also the correct replacement spring for the +7 and +10 VP9 extensions. A...