FLUX DEFENSE Raider 365 Side Folding Rifle Stock - Long Arm/No Endplate Black. Do NOT install pistol brace end plate onto the long arm. The long arm length of pull is longer than 13.5 inches and can no longer qualify as a pistol brace. Specifications for FLUX DEFENSE Raider 365 Side Folding Rifle Stock - Long Arm/No Endplate: Manufacturer: FLUX DEFENSE Gun Make: SIG Sauer Gun Model: SIG Sauer P365 Color: Black Package Contents: FLUX DEFENSE Raider 365 Side Folding Rifle Stock - Long Arm/No Endplate What firearm models does the manufacturer say FLUX DEFENSE Raider 365 Side Folding Rifle Stock - Long Arm/No Endplate is compatible with? The manufacturer suggests that FLUX DEFENSE Raider 365 Side Folding Rifle Stock - Long Arm/No Endplate is compatible with SIG Sauer P365FLUX DEFENSE 165-00031: Raider 365 Side Folding Rifle Stock - Long Arm/No Endplate Black