War Hammer Armaments Complete Super Safety MP5/MP5K Lower

The War Hammer Armaments Complete Super Safety MP5/MP5K Lower is a finished, fully assembled lower housing built specifically for Super Safety-equipped forced reset MP5 platforms. Where most of the category is either a drop-in cassette or a billet aluminum lower, War Hammer molds this one from a Kevlar and carbon-fiber-infused polymer, so it is lighter than a billet lower while staying stiff at the fire control group. It arrives ready to install with the internals in place; the Super Safety selector's added position is what enables forced reset, with the trip resetting the trigger off the bolt carrier each cycle.

Compatibility is broad for a complete lower because War Hammer offers both Full Size MP5 and MP5K configurations in push-pin or shelf pattern. That covers HK SP5, PTR 9CT, MKE AP5, Zenith ZF-5, and the MAC-5 lineup along with their K-pattern variants. War Hammer is clear about the exclusions: it is not compatible with the AP53 or 5.56 MP5-style platforms, so confirm your host before ordering. The lower ships in Black or RAL 8000.

Pricing is $625, marked down from $675, which puts it at the top of the MP5 forced reset range alongside the Rare Breed RD3. The pitch is the finished, install-ready polymer build rather than a part you assemble. It is direct from War Hammer Armaments, and state shipping restrictions apply, so verify current federal, state, and local law before purchase.