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Questions & Answers
Will it fit a Christensen Mpr? Manufacturer Answer

As long as it has a single M-Lok slot on the bottom of the buttstock it should fit, but this bag rider does feature an angle intended for our buttstocks.

by MDT Sporting Goods, Manufacturer, July 23, 2025
Will this fit on the Oryx ?

If the oryx has an mlok slot this will fit. it fits any standard mlok slot

by jerne90, Verified Owner, January 19, 2025
Customer Reviews
Helpful Positive Review
Great quality by Nvcnvc, Verified Owner, July 16, 2020
OP was the only vendor that had this item. Fast shipping. The rider looks good and fits perfect. Have not used it yet, but I am sure it will be great! I like the M lock connectors. It attaches very securely on the chassis.I would definitely buy again...
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1/1 found this helpful
Helpful Negative Review
MDT Should state that it is not for the Oryx chassis even though the Oryx has a M-Lok attachment on the stock. It looks a quality piece, nothing outstanding but overly expensive for what it is. I’m happy with the Oryx and other MDT add ons but this b...
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2/6 found this helpful
Most Recent Reviews
Same great quality as the MDT chassis itself. Looks great and performs flawlessly.
Most Recent Reviews
KIDD GUN Build by tim, Verified Owner, March 30, 2026
It fits really well, looks great. The Fit, in finish is exactly what I wanted.
Most Recent Reviews
MDT bag rider by Andy, Verified Owner, November 8, 2025
Easy to install and great fit. Helps stabilize chassis in rear bag for better accuracy.
Most Recent Reviews
Great Bag Rider by Gary, Verified Owner, March 31, 2025
This is a great addition to my MDT ACC Elite Chassis. I should have done this when I first started. Love it! Great fit and finish. This is a well crafted product. Very solid!
Read All 10 Reviews
Color:
Black
Fabric/Material:
6061-T6 Aluminum
Additional Features:
Long 5in surface
Finish:
Mil-spec Type III hard anodized finish to stand up to repeated usage
Condition:
New

Code: 3JN-KA-MLKRBR-103631-BLK

MPN: 103631-BLK

UPC: 709951106457

$59.99

Product Info for MDT M-LOK Rear Bag Rider

M-LOK Buttstock Rear Bag Rider - the buttstock accessory that completes your rifle build. The MDT Rear M-LOK Bag Rider is a rugged and reliable attachment that attaches to any M-LOK surface on a rifle buttstock. They attach with the M-LOK machine screws that are included with the stocks. However, the surface area is much greater than that of a bag, which creates a point of contact that absorbs some of the recoil. The MDT Buttstock Rear M-LOK Bag Rider w/ Rounded Profile has a long 5 inch surface to better interact with a variety of bags to allow for more in-line recoil characteristics. Its slim profile ensures there is no rear overhang to interfere with LOP or buttpad adjustments. Made from 6061-T6 aluminum with Mil-Spec Type III hard anodized finish, this Rear Bag Rider from MDT is built to last.image

Specifications for MDT M-LOK Rear Bag Rider:

Manufacturer: MDT
Color: Black
Fabric/Material: 6061-T6 Aluminum
Additional Features: Long 5in surface
Finish: Mil-spec Type III hard anodized finish to stand up to repeated usage
Condition: New
Country of Origin: Canada

Features of MDT M-LOK Rear Bag Rider:

  • Compatible with M-LOK mounting systems commonly found on buttstocks like the MDT ACC
  • ESS and SRS V5.
  • Long 5 surface to better interact with a variety of bags to allow for more in-line recoil characteristics.
  • Rounded front and side surfaces to reduce snagging and catching.
  • Slim profile to match up with buttstock width.
  • No rear overhang to interfere with LOP or buttpad adjustments.
  • 6061-T6 aluminum construction.
  • Mil-spec Type III hard anodized finish to stand up to repeated usage.

Package Contents:

  • MDT M-LOK Rear Bag Rider

MDT M-LOK Rear Bag Rider Orderable Models

List of Orderable Models

  • MDT M-LOK Rear Bag Rider, Black, 103631-BLK , MPN: 103631-BLK , UPC: 709951106457 , Code: 3JN-KA-MLKRBR-103631-BLK

MDT M-LOK Rear Bag Rider Unavailable & Discontinued Models

List of Unorderable Models

  • USED MDT M-LOK Rear Bag Rider, Black, 103631-BLK, EDEMO3, Used, Condition Fair , MPN: 103631-BLK-EDEMO3 , Code: 3JN-KA-MLKRBR-103631-BLK-EDEMO3
  • USED, MDT M-LOK Rear Bag Rider, Black, 103631-BLK , MPN: 103631-BLK-EDEMO , Code: 3JN-KA-MLKRBR-103631-BLK-EDEMO-OB-A
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Last updated 2026-07-10 UTC.