Does installing the Harris #8 Adapter on a Remington XP-100 require permanently modifying the stock?

Yes, installation requires permanently drilling a hole into the factory synthetic stock of your Remington XP-100 handgun. The kit includes a dedicated rubber contour wedge and an internal cylindrical backing nut to securely distribute clamping pressure inside the hollow polymer forend.

Which Harris bipod models are recommended to pair with this adapter for optimal stability?

The manufacturer explicitly recommends pairing the HADAP8 adapter with standard benchrest and prone Harris bipod models, such as the BR, BRM, L, and LM series. It is best suited for 6-9 inch or 9-13 inch adjustable heights like the Harris HS-BR or HS-L; tall standing-height bipods should be avoided as they produce excessive leverage on pistol forends.

Can this adapter be used on wood stocks or converted to a modern Picatinny rail interface?

No, the Harris #8 adapter is engineered specifically with a 7A-style rubber contour wedge tailored strictly for synthetic and plastic factory Remington XP-100 stocks. If you have a wood forend, flat-bottom benchrest rifle, or require modern Picatinny or Arca-Swiss rail mounts, you will need to look into alternative flat adapters or secondary conversion blocks instead.

Harris HADAP8 Bipod Adapter - Harris HADAP8

The Harris Engineering No. 8 Bipod Adapter (HADAP8) provides a dedicated sling swivel stud mounting point for factory synthetic and plastic Remington XP-100 bolt-action handgun stocks. Engineered specifically for the hollow polymer forends of original XP-100 target pistols, this mechanical hardware kit enables the secure installation of standard swivel-stud mounted accessories and bipods without requiring improvised fasteners.

Key Features

Dedicated XP-100 Fitment: Engineered specifically to match the profile of original Remington XP-100 polymer stocks lacking factory swivel studs.
Internal Clamping Nut: Employs an internal cylindrical nut that sits within the hollow forend cavity to distribute mechanical stress across the stock wall under recoil.
Vibration-Damping Rubber Spacer: Includes a 7A-style contoured rubber wedge that matches the stock exterior to prevent finish marring and absorb shock.
Standard Swivel Interface: Accommodates standard quick-detachable sling swivels and clamping bipods, specifically optimised for Harris BR, BRM, L, and LM series bipods.
Robust Mechanical Build: Made in the USA with all-steel hardware components weighing under 30 g (approx. 1 oz).

Specifications

Product: Harris Engineering No. 8 Bipod Adapter
SKU / Model: HADAP8 (No. 8 / HB8)
Country of Origin: Made in the USA
Included Hardware: 1x quick-detachable sling swivel stud, 1x internal cylindrical nut, 1x rubber contour wedge/spacer (7A style)
Hardware Weight: Under 30 g (approx. 1 oz)
Stock Material Compatibility: Remington XP-100 synthetic/plastic factory stocks (requires drilling)
Bipod Interface: Standard sling-swivel stud attachment (recommended for Harris 6–9" and 9–13" models)
Power Requirements: None (fully mechanical)

Who is the Harris #8 Adapter - Xp 100 for?

Precision handgun hunters — requires a robust anchoring point on Remington XP-100 synthetic stocks, utilising 1 quick-detachable sling swivel stud backed by 1 internal cylindrical nut weighing under 30 g (approx. 1 oz) to absorb recoil from factory calibres up to .35 Remington without pulling through the polymer.
Long-range metallic silhouette shooters — relies on the 1 included 7A-style rubber contour wedge/spacer to mate flush against the curved XP-100 forend, providing a stable, vibration-damped bipod base that mounts under 30 g of total hardware to keep front-end balance intact.
Bench rest shooters — needs to mount 6–9" or 9–13" benchrest bipods to factory pistol forends using a dedicated 1-stud mechanical interface anchored by an internal threaded backing nut.

Less suitable for: XP-100 pistols configured with flat-bottom benchrest or wood stocks (which require flat-base adapters or standard wood-screw studs), modern Picatinny/Arca-Swiss rail systems (which require dedicated rail interface conversion blocks), or use with tall standing-height bipods that apply excessive leverage to handgun forends.

SKU	HR40930LP
Model #	HADAP8
Brand	Harris
Shipping Weight	1.0000kg

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Harris Hadap8 Bipod Adapter Remington Xp 100

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