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B&T Firearms, MBT Coyote Tan Polymer Adjustable Folding Stock Assembly, Fits APC 9/40/45 - SKU: BT-361639-CT - UPC: 840225710861
Product Description
The B&T Firearms MBT (Modular Button Stock) Folding Stock Assembly in Coyote Tan (BT-361639-CT) is an ergonomic upgrade engineered specifically for B&T APC9, APC40, and APC45 pistol caliber carbine and submachine gun platforms. Designed to replace standard fixed or minimalist stocks, the MBT assembly brings advanced length-of-pull and cheek weld adjustability to B&T's premier PCC line in a matching Coyote Tan finish.
Precision-molded from high-impact reinforcement polymer, the MBT stock offers an 8-position telescoping length of pull along with a 3-position height-adjustable cheek riser. This allows operators to achieve a tailormade cheek weld and eye-relief distance when running various optical setups, night vision gear, or gas masks. The mechanism folds securely to the right side, canted downward at 3.5 degrees to clear the ejection port, allowing full weapon operation and firing capabilities even while folded.
This complete stock assembly comes equipped with B&T's integrated factory hydraulic buffer mechanism and backplate, dramatically softening bolt carrier impact, reducing felt recoil, and speeding up follow-up shots during rapid-fire schedules. Built-in ambidextrous steel QD sling swivel points provide seamless sling integration for tactical deployment and field staging.
*Armorer Bench Notes & Real-World Staging Guidance:
Fitment Matrix: Direct fit for B&T APC9, APC40, and APC45 lower/upper receiver assemblies. Includes integrated hydraulic buffer mechanism.
- Verify host B&T APC firearm is completely clear, magazine removed, safety engaged, and chamber confirmed empty.
- Drive out the rear lower receiver takedown assembly pins to detach the stock backplate from the upper receiver.
- Slide the existing factory backplate or endcap assembly upward off the upper receiver housing.
- Align the dovetail channel on the BT-361639-CT Coyote Tan MBT assembly with the rear of the APC upper receiver and slide downward until fully seated.
- Reinsert the rear takedown pins through the lower receiver and backplate housing, then perform a manual function check of the folding release button and telescoping mechanism prior to live-fire staging.
Key Features
- 8-Position Length of Pull: Telescoping stock body adjusts quickly via a central push-button to match various body armors and shooting stances.
- 3-Position Adjustable Cheek Riser: Integrated cheek rest elevates to ensure optimal cheek weld with low, medium, or high optic mounts.
- Integrated Hydraulic Buffer: Supplied complete with B&T's proprietary hydraulic recoil buffer system to suppress bolt impact and muzzle rise.
- Right-Side Down-Canted Fold: Folds tightly to the right side at a 3.5-degree down-angle, allowing uninterrupted ejection and firing capability while stowed.
- Impact-Resistant Polymer Construction: High-strength Coyote Tan polymer housing withstands extreme thermal shifts and heavy operational impact.
- Ambidextrous QD Sling Sockets: Features integrated steel QD mounts on both sides for rapid tactical sling attachment.
Product Specifications
- Brand: Brugger & Thomet (B&T)
- Model: MBT Folding Stock w/ Hydraulic Buffer Assembly
- MPN: BT-361639-CT / 361639CT
- SKU: BT-361639-CT
- UPC: 840225710861
- Platform Compatibility: B&T APC9 / APC40 / APC45
- Length Adjustment: 8-Position Telescoping
- Cheek Riser: 3-Position Height Adjustable
- Material: Reinforced Polymer / Steel Components
- Finish/Color: Coyote Tan (CT) / FDE
- Weight: ~16.3 oz / 462 g (With Buffer)
- Country of Origin: Switzerland
