MDT M LOK Rear Bag Rider Precision Rifle Stock Accessory Aluminum Black 103631 BLK UPC 990482718046
Product Description
The MDT® M-LOK Aluminum Rear Bag Rider (SKU: 103631-BLK / UPC: 990482718046) is a lightweight, high-performance rifle stock interface developed to provide precision marksmen and competition shooters with a full 5 inches of uninterrupted horizontal tracking area. Specifically designed for shooters who require maximum bag contact without adding unwanted pounds to their overall rifle setup, this component ensures predictable, straight-line recoil response across diverse positional rests.
Precision-machined from aircraft-grade 6061-T6 billet aluminum, this lightweight bag rider weighs just 0.215 lbs (3.44 oz), preserving the nimble balance of dynamic hunting rifles, lightweight tactical rigs, and PRS setups operating near strict competition weight limits. The chassis is finished in an ultra-durable MIL-A-8625 Type III Class 2 Hardcoat Anodize in non-reflective matte black, protecting the aluminum against grit gouging, bag friction wear, and harsh environmental elements.
Boasting an extended 5.0-inch smooth running surface, this model accommodates oversized rear shooting bags and wedge rests, facilitating continuous micro-elevation adjustments simply by sliding the stock forward or backward. Every corner, side transition, and leading angle is meticulously rounded and deburred to prevent snagging on shooting bags, tactical slings, or field vegetation, while maintaining zero overhang to keep your buttpad and length-of-pull dials fully accessible.
*Armorer Bench Notes & Real-World Staging Guidance:*
Fitment Matrix: Fits precision rifle buttstocks featuring bottom-mounted M-LOK slots (including MDT ESS, MDT SRS V5 and newer, MDT SRS-X, SRS-XF, ACC Elite, and aftermarket M-LOK precision buttstocks). CRITICAL: NOT compatible with legacy MDT round-hole bolt-on stocks (use MDT Bolt-On Rider 104011-BLK instead). Ensure M-LOK T-nuts engage flush behind the stock channel. Maximum recommended installation torque is 30-35 in-lbs using medium threadlocker on fastener threads.
- Ensure the host firearm is completely clear, magazine removed, and chamber visually and physically verified empty.
- Install the included hex drive screws loosely through the aluminum bag rider base and thread on the steel M-LOK T-nuts.
- Align the T-nuts with the lower M-LOK slots of the buttstock, sliding the 5-inch rider forward or backward to optimize bag contact for your shooting style.
- Snug the screws while maintaining light downward pressure to confirm that the T-nuts rotate 90 degrees perpendicular across the inner slot shelf.
- Torque both fasteners to 30-35 in-lbs using a calibrated hex driver, cycle the buttpad adjustment track to ensure zero interference, and confirm smooth sliding action across a rear support bag.
Key Features
- Extended 5.0-Inch Tracking Surface: Delivers an elongated, flat horizontal plane for expansive rear squeeze bag support and fluid elevation adjustments.
- Ultralight 6061-T6 Billet Aluminum: Weighs only 0.215 lbs, maximizing stability without compromising weight thresholds on hunting or lightweight match rifles.
- Type III Hardcoat Anodized: Heavy-duty matte black anodized surface provides rugged scratch, chemical, and wear resistance under sustained match recoil.
- Snag-Free Radiused Profile: Completely deburred and rounded edge profiles prevent bag dragging, fabric fraying, and gear hang-ups.
- Unrestricted Stock Adjustability: Engineered with zero rearward protrusion, preserving complete mechanical clearance for buttpad elevation and LOP adjustments.
Product Specifications
- Brand: MDT® (Modular Driven Technologies)
- Model/Series: M-LOK Rear Bag Rider (Aluminum)
- MPN / SKU: 103631-BLK / 103631BLK
- UPC: 990482718046
- Material: 6061-T6 Billet Aircraft Aluminum
- Finish: MIL-A-8625 Type III Hardcoat Anodize (Matte Black)
- Mounting Interface: Magpul M-LOK (2 Slots Required)
- Tracking Length: 5.00 Inches
- Profile: Slimline Radiused Smooth Track
- Platform Compatibility: MDT ESS, SRS V5+, SRS-X, ACC & Universal M-LOK Buttstocks
- Country of Origin: Canada
