The Derya Firearms TM22 Standard is a semi-automatic .22 LR rifle with an 18-inch target barrel and a 34-inch overall length. It has a black anodized aluminum receiver topped with a Picatinny rail, paired with a pink adjustable polymer stock. The barrel and other steel parts carry a black Melonite finish. 
 

Key Specifications 

• Brand: Derya Firearms 
• Model: TM22 Standard 
• Caliber: .22 LR 
• Action: Semi-Auto 
• Capacity: 10+1 
• Barrel Length: 18 inches 
• Overall Length: 34 inches 
• Finish: Black Melonite 
• Stock Color: Pink 
   

Detailed Features 

• 18-inch black target barrel with a Melonite finish for corrosion resistance 
• Aluminum receiver with a Picatinny rail plus front and rear rails for mounting accessories 
• Adjustable polymer stock with removable basepads to set length of pull 
• Front bead sight for quick sighting without an added optic 
• Ships with a 10-round polymer magazine and also accepts 15-round and 25-round aftermarket magazines

The TM22 Standard draws the kind of feedback typical of budget-friendly .22 LR semi-autos: owners like that it runs standard bulk ammo without much fuss once broken in, though a handful mention needing to clean and lube a new rifle before it cycles consistently. Reliability chatter for this class of rimfire rifle usually centers on magazine fit and ammo sensitivity rather than the action itself.

The pink stock and lightweight polymer build make the TM22 popular as a first rifle or a range gun for newer shooters, and the adjustable length of pull gets called out as a nice touch for growing shooters or smaller frames. The aluminum receiver keeps the rifle from feeling front heavy, and the added rail space is appreciated by owners who want to mount a red dot.

On value, buyers tend to compare the TM22 against other entry-level rimfire semi-autos and see the rail, adjustable stock, and magazine compatibility as solid for the money. Some owners wish the included magazine held more rounds out of the box, though the ability to run larger aftermarket magazines mostly offsets that.