*NOTICE 3/11/24  Due to this being a high demand product please note there can often be a 3-4 week lead time in shipping. 

Package Contents

- QTY 1 - QuickFist® Go-Between Clamp - Enlarged [Handguard] + RMP™ Backer Plates

- QTY 1 - RMP™ Buttstock Cup Kit [Standard or XL Size, details below]

RMP™ Buttstock Cup Kit [Standard Cup] Contents

- QTY 1 - Standard Buttstock Cup
- QTY 1 - L-Bracket (to connect cup to panel)
- QTY 2 - RMP™ Backer Plates (allow mounting in vertical or horizontal orientation on panel)
- QTY 4 - 1/4-20 x 3/8" Machine Screws
- QTY 2 - 1/4-20 x 1/2" Machine Screws

Necessary Tools for Installation (Not Included):
- Phillips Head Screwdriver

Standard Cup Compatibility

This standard buttstock cup is designed for (this listing does not include any of the following) use with a secondary restraint to secure the firearm forearm. The Buttstock Cup fits the following firearms. (measure your firearm buttstock before purchase to verify fit):

- Internal Dimensions: 5.37" long x 1.75" wide x 1.29" deep

- Standard size AR-15 or M4 / M16 Buttstock (oversized aftermarket stocks may not fit in the cup, but can be laid across the recessed side walls instead).

- Standard size AK-47 and AK-74 Buttstocks

- Standard Shotguns

- Standard Hunting Rifles

- For Larger Buttstocks, see our Rifle XL Buttstock Cup

RMP™ Buttstock Cup Kit [XL Cup] Contents

- QTY 1 - XL Buttstock Cup
- QTY 1 -L-Mount (to connect rack to panel)
- QTY 2 - RMP™ Backer Plates (allow mounting in vertical or horizontal orientation on panel)
- QTY 4 - 1/4-20 x 3/8" Machine Screws
- QTY 2 - 1/4-20 x 1/2" Machine Screws

Necessary Tools for Installation (Not Included):
- Phillips Head Screwdriver

 XL Cup Compatibility

This XL buttstock cup is designed for use with oversized buttstocks such as the Magpul STR and others. Designed to be used with a secondary restraint to secure the firearm forearm. The XL Buttstock Rack (Cup) fits the following firearms (measure your firearm buttstock before purchase to verify fit):

- Internal Dimensions: 6.25" long x 2.6" wide tapered down to 1.72" wide x 1.29" deep

- All Standard size AR-15, M-4, M-16, AK-47 style, and AK-74 style variants (these may fit better in the regular sized buttstock cup)

- Oversized Buttstocks including extra wide ones such as Magpul STR

- Most AR Pistol Braces

Buttstock Cup Kit Installation Instructions:

RMP™ Buttstock Cup Kit Contents

Backer Plate Layout for Vertical Orientation Mount

Backer Plate Layout for Horizontal Orientation Mount

Pass two screws through the back of the backer plates, Hold "L" Bracket up, and screw in.

Pass two screws through the back of the backer plates, Hold "L" Bracket up, and screw in.

Line up buttstock cup, can be mounted in three positions. Left, Right, and Center.

Line up buttstock cup, can be mounted in three positions. Left, Right, and Center.

Line up buttstock cup, can be mounted in three positions. Left, Right, and Center.

Line up buttstock cup, can be mounted in three positions. Left, Right, and Center.

When desired position of buttstock cup kit found, screw all four screws in to secure it.