Discontinued – Weaver M Side Mount Base, 48409 for U.S. Carbine M1 30 Cal+

Used on the Following Firearms:
U.S. Carbine M1 30 Cal+

Requires drilling & tapping of 4 holes in reciver & space cut in stock to clear base

Side mount brackets detach and attach in seconds, just like the detachable top mounts (the bases themselves do not). Side mount brackets are available in a “high profile” in a standard or long length to accept a variety of scopes.

Use only with Side Mount Ring Assembly:
Weaver 1″ Detachable Side Mount Rings – High Bracket & Rings 49350
or
Weaver 1″ Detachable Side Mount Rings – Long High Bracket & Rings 49340