The SB5K was designed for use on the HK MP5K, MP5K clones, SP89 clones, and the SP5K. It WILL NOT Fit: MP5, MP5K Reverse Stretch, or HK53 clones.
Based on the iconic Brügger and Thomet side-folding stock for the MP5 series, the SBT5™ Pistol Stabilizing Brace™ enhances your MP5 pistol with an integral, side-folding mechanism. The SBT5 fits MP5/MP5K Reverse Stretch Clones and comes ready to install.
Law Tactical's steel adapter enables installation of a folding stock on any AR-15 to create a smaller-profile rifle for easy deployment from a vehicle or transport in non-permissive environments. Works with standard gas impingement OR gas piston system. Accepts A2, mil-spec M4-style, and commercial carbine receiver extension tube and almost any stock that fits them. Compatible with all standard bolt carrier groups, including full-auto and .308 size. Single-button operation for quick folding and unfolding and steel locking latch keeps stock securely in place when extended. Gen3-M has a lowered hinge to avoid interference when charging the weapon, and a setscrew keeps the adapter securely affixed to the receiver. Hinge tension is adjustable so you can choose how stiff the folding mechanism is. Includes special bolt carrier extension (no tools to install/remove). Current version utilizes standard buffer retaining pin and spring. Stock adapter features DLC coating.
Paired with the BCM AR-15/M16 Pistol Receiver Extension kit has a 1.2” outside diameter which makes it compatible with the Sig Sauer SB-15 Stabilizing Brace. Made from 7075 T6 aluminum with a hard coat anodized finish, the kit also includes a castle nut, carbine buffer, carbine action spring, and QD receiver end plate.
SPECS: Adapter-Machined 4140 steel, DLC finish, matte black. Adds 1.3" (3.4cm) to length of pull. 8.5 oz. (241g) wt. Do not fire rifle with stock folded. Extension Kit- Made in the USA and manufactured from high quality 7075 T6 aluminum.
SIG SAUER factory Pistol Stabilizing Brace kit installs easily on your SIG MPX or SIG MCX via the receivers 1913 interface. Available in Flat Dark Earth.