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MDT ACC M-LOK Rear Bag Rider, 5″ Aluminum, Black – MPN 103631-BLK

UPC: 709951106457

$59.99

4 in stock

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Description

That single M-LOK slot on the bottom of your MDT buttstock isn't much to rest a rear bag against, and if you've ever fought to get your rifle balanced on a wedge or squeeze bag, you already know it. The MDT ACC M-LOK Rear Bag Rider fixes that by extending the contact surface a full 5 inches, turning a cramped mounting point into a genuine platform your bag can settle into. It's angled to match the underside of MDT buttstocks so the rider sits flat and horizontal, which is exactly what you want for clean, in-line recoil and a fast return to your second sight picture.

Why the 5" Aluminum Bag Rider Earns Its Spot

The extra length does more than look the part. A longer, flatter surface lets the rifle track straight back under recoil instead of hopping off the bag, and it gives you room to shift fore and aft between positions without the stock digging in. The front and side edges are rounded and beveled, so the rider slides across bag material and gear rather than catching on it. Little detail, but it matters when you're working through a stage or resetting between shots.

Built From 6061-T6 for the Long Haul

This one is machined from 6061-T6 aluminum and finished in a Mil-Spec Type II hard-black anodize, so it shrugs off the wear that comes with repeated bag work and range days. At roughly 0.2 pounds it adds a touch of rearward weight without throwing off your balance, and the fit and finish match the quality you'd expect bolting onto an MDT chassis.

Fitment Worth Checking First

The rider attaches to the M-LOK interface on MDT buttstocks, and it's a proven match for platforms like the ESS and SRS V5 and newer, along with the ACC Premier and Elite stocks. Shooters running PRS and NRL setups tend to lean on this piece because it makes rear bag control more consistent match after match. One thing to note: even though some MDT stocks have an M-LOK slot, this rider is purpose-cut for the buttstock lines above, so confirm your specific stock before ordering.

Key Specifications

  • Manufacturer: MDT
  • Manufacturer Part Number: 103631-BLK
  • UPC: 709951106457
  • Material: 6061-T6 Aluminum
  • Finish: Mil-Spec Type II Hard-Black Anodized
  • Surface Length: 5 inches
  • Color: Black
  • Mounting: M-LOK
  • Weight: Approx. 0.215 lb
  • Compatibility: MDT ESS, SRS V5 (and newer), ACC Premier and Elite buttstocks
  • Profile: Angled flat surface with rounded, beveled edges

What’s Included

  • MDT ACC M-LOK Rear Bag Rider (5" Aluminum)
  • M-LOK mounting hardware

Frequently Asked Questions

Which MDT buttstocks does the M-LOK Rear Bag Rider fit?

It's built to attach to the M-LOK interface on MDT buttstocks like the ESS and SRS V5 and newer, and owners report clean fitment on the ACC Premier and Elite stocks as well. The rider is angled specifically to match the underside of these MDT stocks. Since not every M-LOK stock is the intended fit, it's worth confirming your exact buttstock model before ordering.

Will this bag rider work on an MDT Oryx chassis?

Even though the Oryx has an M-LOK slot on the stock, this rider isn't designed for that chassis. It's cut and angled for the ESS, SRS V5, and ACC buttstock lines. If you're running an Oryx, you'll want to look at a rider made for that platform instead.

Does the 5" length really make a difference for rear bag shooting?

It does. The longer flat surface lets the rifle track straight back under recoil rather than bouncing off the bag, which helps you hold your position and get back on target faster. Shooters who struggled to balance on a rear bag with just the stock slot tend to notice the improvement right away.

How does the aluminum version compare to the steel one?

This aluminum model gives you the full 5 inches of surface and stays light at around a fifth of a pound, so it won't shift your balance much. The steel version runs 4 inches and adds more rearward weight if that's what you're after. For most PRS and precision setups, the aluminum rider is the popular pick.

Additional information

UPC

709951106457

Manufacturer

Manufacturer Part Number

103631-BLK

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