Stealth Arms Platypus 320 Comp 9mm — Compact 1911-Style, 4.25 in Barrel, Integrated Compensator, 17+1 Capacity, Matte Green
The Stealth Arms Platypus 320 Comp stands out with its integrated single-port compensator, a one-piece billet 7075-T6 aluminum frame, and a double-stack 17+1 configuration fed by SIG P320 magazines. Finished in matte green with matching slide and frame, it adds modern capacity and features to a 1911-style, single-action platform.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Details: There are minimal markings from previous handling and use. Please refer to the photos for a complete view of the pistol's condition.
What’s Included
- Two 17-round steel double-stack P320-pattern magazines (compatible with the Platypus 320)
- Stealth Arms padded zippered soft case with red-stitched interior and dual magazine slots
- Stealth Arms owner's manual
Designed around SIG P320 magazines, the Platypus 320 Comp delivers 17+1 capacity in a compact, single-action 1911-style format. A large, SA-marked flared magwell speeds reloads while supporting the double-stack configuration.
The integrated single-port compensator reduces muzzle rise, and the green fiber-optic front sight is mounted directly on the comp for a stable sight picture. The rear deck is optics-ready with a removable plate, and no rear sight is installed.
The one-piece billet 7075-T6 aluminum frame pairs with a steel slide, both finished in matte green. The dustcover includes a full-length accessory rail, while slide lightening windows and textured inlay panels add practical weight savings and grip reference.
Controls and ergonomics include an ambidextrous thumb safety, grip safety, left-side magazine release, flat-faced trigger, and a skeletonized ring hammer. Prickle-style textured grips provide a secure hold.

