b.o.s. lock Mark III Compatibility Guide
Find the Perfect Fit for Your Firearm
Use this guide to determine which B.O.S. Lock Mark III model—Defender, Guardian, or Protector—is compatible with your firearm. Ensure your B.O.S. Lock delivers optimal security and seamless functionality tailored to your firearm's specifications.
B.O.S. LOCK MARK III
BERETTA | M9A4 Centurion
GLOCK | G17, G20, G20SF, G21, G21SF, G22, G37, G47
SHADOW SYSTEMS | MR920L Elite, MR920P Elite 4.8", XR920P Elite 4.5", XR920 Elite 4.8"
SMITH & WESSON | M&P45 M2.0, M&P9 M2.0 METAL,
M&P 10MM M2.0 4.6"
B.O.S. LOCK MARK III
BERETTA | 92XI
CANIK | TP9 SF, TTi Combat
FN | 509 Full-Size MRD 4.5"
GLOCK | G19, G19x, G23, G25, G29, G30, G30S, G30SF, G32, G36, G38, G44, G45, G48
SHADOW SYSTEMS | MR920 4", MR920 Elite 4.5", XR920 4"
SMITH & WESSON | M&P9 2.0 COMPACT 4",
M&P 10MM 2.0, M&P 45 2.0 , SD9 2.0, M&P9 M2.0 Full-Size, M&P9 M2.0 Compact Carry Comp, M&P9 M2.0 Metal Carry Comp, M&P 10MM M2.0 4"
WALTHER | PDP Compact 4", PDP Compact 5", PDP Pro SD Compact 4.6", PDP Full-Size 4", PDP Full-Size 4.5", PDP Full-Size 5", PDP Full-Size Match 5", PDP F-Series 4", PDP Compact Steel Frame 4", PDP Compact Steel Frame 4.5", PDP Compact Steel Frame 5"
B.O.S. LOCK MARK III
SIG SAUER | P320-M18, P320-M18x, P320-AXG Carry, P320 XCarry Legion, P320 X-Five SXG, P320 Full-Size, P320 3.9”, P320F
FN | 509 Mid-Size 4”, 509 Mid-Size MRD 4”, 509 Tactical, 510 Tactical, 510 MRD, 545 MDR, 545 Tactical