The DMK22C is a dedicated .22LR semi-automatic rifle platform that is optimized for realistic training accuracy and that offers nearly limitless customization. The DMK22C fills the roll of a low cost training solution that replicates the exact form and function of the ubiquitous AR-15 rifle. - The DMK22 features a patented barrel adaptor that allows for the use of aftermarket 10/22 barrels capable of accommodating any type of performance requirement. Also the DMK22 employs a patented bolt lock to keep the action open when the magazine is removed allowing for the same reloading manual of arms as a centerfire AR-15. Additionally the DMK22C is compatible with nearly all AR-15 upgrades and furniture. The DMK22 is the no-compromises rimfire AR-15. - Features - Semi-Automatic - Direct Blowback - 4140 Chrome Moly Threaded Barrel with Black Nitride (QPQ) Finish - Patented Adaptor for 10/22 Barrel Compatibility - Full Metal Construction - Free Float M-LOK Aluminum Modular Handguard - MIL-Spec Buffer Tube - Patented Last Round Bolt Lock - 6 Position Adjustable Stock - AR-15 Aftermarket Furniture Compatibility - Caliber 22LR - Model DMK22C - Action Semi-Automatic - Operating System Direct Blowback - Barrel Length 16.5 In - Overall Length Collapsed 30.80 in / 782.6 mm - Overall Length Extended 34.10 in / 866.6 mm - Magazine(s) included (1) 15 Rounds - Color Black - Weight 6.5 lb / 2.9 kg - Barrel Material 4140 Chrome Moly - Barrel Finish Black Nitride (QPQ) - Twist Rate 1:16 RH - Trigger Type Single Stage - Stock 6 Position Adjustable Stock - What's in the Box - (1) KRISS DMK22C Firearm - (1) Magazine - (1) Cleaning Kit - (1) Cable Lock - (1) User Manual - (1) Warranty Card