HK MP5 .22 LR Pistol – Factory-Licensed Rimfire Replica with 8.5" Threaded Barrel & Tri-Lug Adapter
The HK-licensed MP5 .22 LR pistol delivers authentic MP5 ergonomics in an economical rimfire package. Built by Umarex in Germany under Heckler & Koch authorization, this straight-blowback trainer mirrors the controls, non-reciprocating charging handle, and ambidextrous safety of the original, while adding a threaded barrel with integrated tri-lug for easy suppressor or muzzle-device installation.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Specific Condition Notes: This pistol displays minimal evidence of firing; the matte black finish is crisp with only tiny handling marks visible under close inspection.
Bore Condition: Excellent – clean, mirror finish, no signs of wear.
Bore Rifling: Excellent – sharp lands and grooves.
What’s Included
- HK factory cardboard box with serial-matching label
- HK MP5 .22 LR Operator’s Manual
- Factory keyed cable lock (red, sealed)
- HK/Umarex combination wrench and hex key
- Factory spare parts packet
The 8.5-inch steel barrel features both a tri-lug adaptor and 1/2-28 TPI threads, giving shooters immediate compatibility with common suppressors and flash hiders. A slim polymer handguard keeps weight down while preserving the classic MP5 silhouette.
An aluminum-alloy receiver finished in matte black hard anodizing provides strength without excess bulk. Coupled with the polymer lower, the pistol balances naturally and remains easy to control during rapid strings of fire.
Controls stay true to the centerfire original: ambidextrous safety/selector, push-button and paddle magazine releases, non-reciprocating charging handle, and a single-stage 5.4 lb trigger. The four-position rotary diopter rear sight and hooded post front sight offer precise, configurable aiming, and the receiver accepts optics mounts for red-dot or scope use.
Introduced in 2021, this rimfire platform offers an affordable training companion for MP5 owners and an accessible entry point for enthusiasts who appreciate the legendary design without the 9 mm cost. Proof marks from the German proof house and CIP Nitro certification confirm quality manufacturing standards.




