Kross Airsoft Design MK23 HPA Drum Magazine Adapter

Reloading a MK23 mid-skirmish is the single biggest weakness of the platform. Every other rifle on the field can dump 100+ rounds before swapping; the stock MK23 manages 28. KAD's HPA Drum Mag Adapter rewrites that maths entirely — converts the MK23 to feed from an MP5-style drum magazine holding 400 rounds.

Three packages. Fully Assembled is the recommended option for most buyers — pre-built around a TM donor magazine, ready to drop straight into your gun and connect to your HPA line. Send Us Your Mag is the middle ground — you supply the donor, we do the conversion work. We assemble using genuine TM mags as standard; if you supply something else (ASG, ARES, etc.) we'll contact you to discuss what's possible.

What 400 rounds actually means at a skirmish

Most full-day games burn through 800–1500 BBs across the day. With a 28-round MK23 mag, that's 28+ reloads — more than one a minute during active engagement. A 400-round drum cuts that to 2-3 magazine changes for the whole day. You spend less time fumbling with mag pouches and more time shooting. For sniper or DMR-style MK23 use, the change is transformative.