SCT Manufacturing Full Size Frame Features The SCT Manufacturing Full Size Frame arrives fully assembled with Gen3 17 compatible internals including a polished trigger assembly with an electroless nickel trigger bar a polymer trigger a standard polymer magazine catch and spring and a 5.5 lb electroless nickel trigger connector. Serrations and an index point on the trigger guard help control recoil while serrations on top of the beaver tail cut glare in bright light. A Gen 5 style slide lock flared mag well and thumb accelerator pad speed up reloads and a high beaver tail with a low profile bore axis keeps the pistol settling flat between shots. The frame also includes a true MIL-STD 1913 Picatinny rail not a proprietary Glock rail for mounting lights or lasers. This frame is compatible with Glock Gen3 17 22 and 31 pistols and supports 9mm 40 cal and 357 SIG chamberings giving builders caliber flexibility on one platform. The grip angle matches factory Glock geometry so shooters transitioning from a stock pistol will find the manual of arms familiar. Every frame is function tested with a factory Glock slide to confirm safe operation before it ships giving builders confidence their foundation is sound. Finished in Flat Dark Earth with a matte finish this SCT Manufacturing frame is ready for a slide assembly to complete a full size Glock pattern build. SCT Manufacturing Full Size Frame Specifications Manufacturer: SCT Manufacturing Model: Full Size Frame Type: Assembled Pistol Frame Frame Finish: Flat Dark Earth Finish: Matte Frame Material: Polymer Grips: Aggressive Texture Compatible Hosts: Glock Gen3 17/22/31 Caliber: 9mm / .40 SW / .357 SIG Weight: 1 lb Available At: GrabAGun