This is the Front Extention Base ONLY (of a two-piece style). The M904M extends front base .554" and the M905M extends the front base .854". The Warne Extension Base helps achieve correct eye relief and give mounting solutions for scopes with a short tube. This base can be installed in either direction; with the cross slot towards the rear or to the front of the firearm. This will give the shooter the option to bring the scope closer or further away to attain the ideal shooting position. Maxima steel bases mount with a low profile so your view is not obscured when the scope is removed. Base is precision CNC-machined from solid steel and are held to very tight tolerances. Maxima steel base design is modeled around the popular Weaver design for strong and versatile mounting. It is the FRONT BASE ONLY.

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