Rock Island Armory TM22 A-18 .22 LR Semi-Auto Rifle – 18" Threaded Barrel, Billet 7075 Receiver
The TM22 A-18 pairs Rock Island Armory’s budget-friendly rimfire concept with a full billet 7075-T6 aluminum receiver, delivering uncommon strength, precise tolerances, and AR-style ergonomics in a lightweight .22 LR platform. This example remains in excellent condition, features a suppressor-ready 18-inch threaded barrel, and comes fully outfitted with carry-handle iron sights and two 10-round magazines.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Condition: Excellent – Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling – Sharp lands and grooves.
Specific Condition Notes: Only minimal handling marks are present, and the bore remains bright and clean.
What’s Included
- Rock Island Armory TM22 A-18 rifle with factory fixed carry-handle rear sight installed
- 2× 10-round detachable polymer magazines
- RIA Imports TM22 rifle owner’s manual
Machined from a solid billet of 7075-T6 aluminum, the TM22 receiver offers superior rigidity compared with common cast or polymer rimfire housings, leading to consistent accuracy and long-term durability.
The 18-inch barrel is threaded 1/2-28 TPI at the muzzle, allowing direct attachment of rimfire suppressors or other devices without additional adapters. Protective muzzle cap is included from the factory.
Controls mirror the familiar AR-15 layout, including a left-side reciprocating charging handle and ambidextrous-convertible safety, while the six-position telescoping stock lets the shooter dial in a 13.5-inch length of pull. An AR-style textured pistol grip and ribbed CAR-15 pattern handguard round out the furniture.
Built in Türkiye by Derya Arms and imported by APINTL for Rock Island Armory, the TM22 entered the U.S. market in 2022. The A-18 variant meets California compliance requirements with its 10-round proprietary magazines while still delivering the fun of a semi-automatic blowback rimfire.