F5 MFG Modular Stock MSS System for B+T APC300/APC556/APC308 Olive Drab Green 3in x 6in x10 in. Modular Stock System (MSS) for B+T APC300/APC556/APC308 Specifications for F5 MFG Modular Stock MSS System for B+T APC300/APC556/APC308: Manufacturer: F5 MFG Gun Type: Rifle Gun Make: Brugger & Thomet Gun Model: Brugger & Thomet APC308 Pro Brugger & Thomet APC223 Pro Package Contents: F5 MFG Modular Stock MSS System for B+T APC300/APC556/APC308 What firearm models does the manufacturer say F5 MFG Modular Stock MSS System for B+T APC300/APC556/APC308 is compatible with? The manufacturer says that F5 MFG Modular Stock MSS System for B+T APC300/APC556/APC308 is compatible with Brugger & Thomet APC223 Pro Brugger & Thomet APC308 ProF5 MFG F5-MSS-APC-556-ODG: Modular Stock MSS System for B+T APC300/APC556/APC308 Olive Drab Green 3in x 6in x10 in