4/16/2025 - THERE IS CURRENTLY A 1-2 WEEK LEAD TIME ON THIS ITEM

RMP™ Buttstock Cup Kit 

The RMP™ Buttstock Cup Kit is everything you need to create a solid mounting point for your Buttstock on any RMP™. It comes with two backer plates and an L-Bracket which create the shelf that the Buttstock Cup will attach to. The L-Bracket has 9 tapped holes to allow mounting at 90°, 135°, or 180° off of the RMP™.  The aluminum Buttstock Cup secures to the Buttstock Cup L-Bracket using the included machine screw and 5/32" Hex Key. The Buttstock Cup comes in two sizes, Standard and XL. The RMP™ Buttstock Cup Kit is typically paired with the QuickFist® Go-Between Clamp - Enlarged [Handguard] - Clamp + RMP Backer Plates to secure the other end of the weapon.

Package Contents: [Standard Cup]

• Standard Buttstock Cup
• L-Bracket (to connect cup to panel)
• Qty 2: Backer Plates (allow mounting in vertical or horizontal orientation on panel)
• Qty 4: 1/4-20 x 3/8" Socket Button Head Machine Screw
• Qty 2: 1/4-20 x 1/2" Socket Button Head  Machine Screw

Package Contents: [XL Cup]

• XL Buttstock Cup
• L-Bracket (to connect rack to panel)
• Qty 2: Backer Plates (allow mounting in vertical or horizontal orientation on panel)
• Qty 4: 1/4-20 x 3/8" Socket Button Head Machine Screw
• Qty 2: 1/4-20 x 1/2" Socket Button Head Machine Screw

Compatibility: [Standard Cup]

This rifle 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
• Most Shotguns
• Most Hunting Rifles
• For Larger Buttstocks, see our Rifle XL Buttstock Cup

 Compatibility: [XL Cup]

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
• The XL Buttstock Cup accommodates larger stocks on rifles, shotguns and pistol braces.
• The XL Buttstock Cup is compatible with the IWI Tavor® X95™.

Specifications: [Standard Cup]

WIDTH 1.75" | 44.45mm
HEIGHT 5.37" | 136.40mm
THICKNESS 1.29" | 32.77mm
WEIGHT 11.11 ounces | 314.99 grams
MATERIAL Aluminum
BRAND Grey Man Tactical™
SKU 000402
UPC N/A
MOLLE SPACES 3 width X 1 height or 2 width X 1 height

Specifications: [XL Cup]

WIDTH 2.6" - 1.72" | 66.04-43.69mm
HEIGHT 6.2" | 157.48mm
THICKNESS 1.4" | 35.56mm
WEIGHT 13.6 ounces | 384.99 grams
MATERIAL  Aluminum
BRAND Grey Man Tactical™
SKU 000403
UPC N/A
MOLLE SPACES 3 width X 1 height or 2 width X 1 height