Blaser Weaver Picatinny Rail Adapter Installation Guide

By Precision Optique | Published: 2026-10-25

Category: How-to Guides

Learn how to install a Blaser Weaver Picatinny rail adapter step by step. Get tips for a secure, accurate mount on your rifle.

Quick Answer

Install the Blaser Weaver Picatinny rail adapter by aligning it with the rifle's existing rail, tightening the mounting screws evenly, and checking for a secure fit. The INNOMOUNT adapter adds only 5mm height for seamless compatibility.

Why Use a Weaver/Picatinny Adapter on a Blaser Rifle

Blaser rifles often come with proprietary mounting systems. A Weaver/Picatinny adapter lets you attach a wider range of optics and accessories, giving you more flexibility without modifying the rifle. The INNOMOUNT adapter is designed specifically for Blaser models and adds minimal height (just 5 mm) to maintain a low profile.

Common Mistakes to Avoid

Over-tightening the screws can strip the threads or damage the rail. Always use a torque wrench set to the manufacturer's specifications. Also, ensure the rail surface is clean and free of oil or debris before installation to prevent shifting under recoil.

Installation Steps

1. Prepare the Rifle: Unload the rifle and remove any existing mount or scope. Clean the Weaver/Picatinny rail surface with a degreaser to remove oil or dirt. A dirty rail can cause the adapter to shift under recoil.
2. Position the Adapter: Place the INNOMOUNT adapter onto the rail, aligning the recoil lug with the slot. Ensure the adapter sits flush against the rail. If the adapter rocks, the rail length may be too short—check for a minimum of 13.5 cm.
3. Hand-Tighten the Screws: Insert the mounting screws and tighten them by hand in a cross pattern to avoid binding. Do not use a tool yet. Cross-threading is common if screws are forced; back out and realign if you feel resistance.
4. Torque to Specification: Use a torque wrench to tighten each screw to the manufacturer's recommended value (typically 15-20 in-lbs for Weaver/Picatinny). Tighten in a cross pattern again. Over-torquing can strip the threads or crack the adapter.
5. Final Check: Try to move the adapter by hand—it should not shift. Re-check screw torque after the first few shots during a range session. Recoil can settle the mount; re-torque after the first outing for lasting security.

Product Details

Blaser - Adaptateur pour rail Weaver/Picatinny: The Blaser - Adaptateur pour rail Weaver/Picatinny (INNOMOUNT) adds only 5 mm height and is compatible with rifles that have a Weaver/Picatinny rail at least 13.5 cm long. This minimal height increase preserves your cheek weld and keeps the scope close to the bore axis, improving accuracy.
Blaser - Adaptateur pour rail Weaver/Picatinny