FN SCAR 17S Features The new SCAR 17S is built around a short-stroke gas piston system with a two-position adjustable gas regulator for improved reliability and suppressor optimization. A hydraulically buffered two-piece bolt carrier reduces felt recoil and promotes faster follow-up shots contributing to smoother operation. The threaded 5/8x24 barrel profile supports compatibility with forward-venting suppressors such as the FN QD762. An extended hard-anodized aluminum receiver integrates a continuous M1913 Picatinny top rail and M-LOK slots at the 3 6 and 9 o'clock positions for expanded accessory mounting. A telescoping side-folding polymer stock with adjustable cheekpiece enhances shooter fit while true AR pistol grip compatibility allows further customization. Ambidextrous controls include an oversized bolt catch and release elongated magazine release two-position ambi safety and a user-configurable non-reciprocating charging handle. FN SCAR 17S Specifications Manufacturer: FN Model: SCAR 17S Caliber: .308 Winchester 7.62 NATO Barrel Length: 16.25 Twist Rate: 1:12 Thread Pattern: 5/8x24 Overall Length: 36 - 38.5 Capacity: 20+1 Magazine Included: 1 Magazine Description: 20 rd. Action: Semi-Automatic Operating System: Short-Stroke Gas Piston Receiver: Hard-Anodized Aluminum Rail System: Continuous M1913 Top Rail M-LOK at 3 6 9 Stock: Telescoping Side-Folding Adjustable Cheekpiece Grip: Polymer AR Compatible Sights: Folding Front and Rear Adjustable Safety: Two-Position Ambidextrous Charging Handle: Non-Reciprocating Color: Flat Dark Earth Weight: 8.9 lbs Includes: Vertical Foregrip Piston Removal Tool Soft Case with Modular Inserts