The Sierra RD Optic plate is available for the following shotgun manufacturers

[badboybeeson]

The Sierra RD Optic plate is available for the following shotgun manufacturers:

Beretta - 1301 tactical (will not fit the 1301 comp)
Benelli - M4, Nova, Stoeger M3K
Mossberg - 500, 590, 930
Remington - 870, 1100, 11-87, Versamax
The Sierra RD Optics Plate is available in the following configurations:

RMR Mount - Trijicon RMR/ Holosun 508/507/507Comp
T2 Mount - Aimpoint T2/ Holosun 403
Acro Mount - Aimpoint Acro P1/P2/ Steiner MPS
Description:

Precision machined from 6061 T6
Aluminum.
Milspec Type 3 Class II Anodizing.
Comes with all mounting .

Made in Canada
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[Gumboots]

Ordered one for my 870 over a week ago. Still waiting on shipping. The 507 got here before the rail. Excited for it.