Description GSM KIT Includes: 2- Spacer Bars 2- #8-32unc x 5/16" Truss head screws 2- Long T-Nuts/Chicago Screws Soft Shell Pistol KIT Includes: 2- Spacer Bars 2- #24 (8-32 x 0.545)" Washer Head Screws - Durable build for everyday use - Precision fit and reliable performance - Backed by USATAC support and fast shipping