PTR 9RS CS Features The PTR 9RS CS is built around PTR s proven roller-delayed blowback action the same operating system found on the brand s full-size roller-locked platforms scaled down into a compact short barreled rifle chambered in 9mm Luger. The 5.16 threaded barrel carries a 1/2x28 thread pattern giving owners a direct path to mounting a suppressor or muzzle device for reduced recoil and signature management. A roller-delayed action naturally runs smoother than a straight blowback gun of similar size which keeps felt recoil manageable and the sight picture settled between shots. That combination of a short threaded barrel and a mild-shooting action makes the 9RS CS a practical choice for close quarters defensive use as well as for suppressor-focused range sessions. The CS1 four position stock lets the shooter tailor length of pull to body size clothing or optic setup while the M-LOK handguard provides a lightweight modular platform for lights foregrips and other accessories without adding unnecessary bulk. A factory-installed scope mount sits ready on the receiver so a red dot or optic can be added immediately without sourcing separate mounting hardware. The rifle ships with two 30-round steel magazines giving owners ample capacity right out of the box for training or home defense. Between the adjustable stock modular handguard included optic mount and steel magazines the PTR 9RS CS arrives configured as a complete ready to run package for serious 9mm SBR shooters. PTR 9RS CS Specifications Manufacturer: PTR Model: 9RS CS Type: Short Barreled Rifle Caliber: 9mm Luger Barrel Length: 5.16 Barrel Description: Threaded Thread Pattern: 1/2x28 Stock: CS1 4 Position Stock Handguard: M-LOK Optic Mount: Scope Mount Included Magazines Included: Two 30-Round Steel Magazines Capacity: 30 Rounds Available At: GrabAGun