Product DescriptionThe CMMG DISSENT MK4 upper group in .22 ARC (Advanced Rifle Cartridge) is built to deliver consistent function and strong ballistic performance from the AR-15 platform. This complete upper is engineered around CMMG's compact direct-impingement action, housing the recoil assembly within the upper to reduce overall bulk and eliminate the need for a traditional buffer tube. It features a forward, non-reciprocating side charging system for fast manipulation, an M-LOK handguard for accessory mounting, and an adjustable gas block for tuning reliability and suppressor use. Finished in Sniper Gray, it's designed to pair with Mil-Spec compatible lower receivers and includes a 1913 Picatinny rear end plate for flexible stock/brace and sling solutions.Product Highlights Complete CMMG DISSENT MK4 upper group chambered in .22 ARC (Advanced Rifle Cartridge) for AR-15/MK4 builds Compact direct-impingement action design keeps the recoil system in the upper for a shorter, cleaner setup Forward non-reciprocating side charging handle for quick operation without disturbing your sight picture M-LOK handguard and top Picatinny rail space for optics, lights, grips, and other accessories Adjustable gas block and rifle-length gas system for performance tuning (including suppressed setups)Specs Brand: CMMG Model/Series: DISSENT MK4 Upper Group Caliber: .22 ARC (Advanced Rifle Cartridge) Barrel Length: 16.10 in Twist Rate: 1:7 Gas System: Rifle-length Gas Block: Adjustable Handguard: M-LOK Charging Handle: Forward non-reciprocating side charger Rear Interface: 1913 Picatinny rail end plate (included) Finish/Color: Sniper Gray Receiver Material: Aluminum (6061-T6 per source data) UPC: 810148627508 Manufacturer Part Number: 28B940CSGDisclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product's manufacturer.