Umarex Legends M1A1 5.8390x — 4.5mm CO₂ BB Rifle
The Umarex Legends M1A1 brings the iconic Thompson look and feel into a legal, high‑performance CO₂ BB rifle. Built with full‑metal construction and authentic blowback action, it delivers satisfying realism and reliable function whether you’re running training drills, practising defensive handling, or adding a rugged replica to your collection. The 4.5mm steel BB calibre and 30‑round drop‑free magazine let you train with realistic capacity and follow‑up shot practice.
Designed for everyday South Africans, security professionals, and tactical enthusiasts, the M1A1 balances durable build quality with controlled power — producing under 3.0 joules of energy to meet local recreational and training requirements. An adjustable rear sight helps you dial in accuracy, while the solid weight and finish reproduce the tactile presence of the original M1A1 Thompson.
Key Features (table)
| Feature |
Benefit |
| Full‑metal construction |
Rugged durability and authentic weight/feel |
| Authentic blowback action |
Realistic cycling for training and presentation |
| CO₂ powered (4.5 mm BB) |
Clean, consistent power for repeated sessions |
| 30‑round drop‑free magazine |
Extended shooting without frequent reloads |
| Adjustable rear sight |
Improved aiming and target acquisition |
| Iconic M1A1 Thompson replica styling |
Collector appeal and professional realism |
| Energy < 3.0 J |
Compliant with low‑power training and legal limits |
Specifications (table)
| Specification |
Value |
| System |
CO₂ airgun |
| Caliber |
4.5 mm (.177) steel BB |
| Magazine capacity |
30 shots (drop‑free) |
| Length |
805 mm |
| Weight |
3435 g |
| Energy |
< 3.0 Joules |
| Action |
Blowback |
| Construction |
Full metal |
| Ideal use |
Tactical training, personal defence practice, collecting |
