The Firefield 45° Offset Picatinny/Weaver Mountfrom Firefield 45° Offset Picatinny/Weaver Mountis designed to move sights and accessories away from the center-line of your long-gun to prevent interference with other scopes or sights. A typical use for this rail is to have a long-distance riflescope mounted conventionally, and a smaller close-to-mid range dot-sight mounted 45° on the offset rail. This dual-mount configuration allows for fast transition from near to far sighting by simply canting the rifle slightly without altering your basic shooting stance - ideal for 3-gun competition shooting. Other uses include mounting lasers, lights, or IR illuminators without interference with sights and scopes. Made of an aluminum alloy with a matte black anodized finish, the 2.17" (5.5cm) long rail can mount on either side of the rifle's primary rail and fastens with two Allen bolts.

Rail Set at 45° to Center-Line    Offset Design Prevents Interference    Permits Attachment of Accessories    Aluminum, Matte Black Anodized Finish    Ambidextrous Mounting

Related Questions and Answers

Q: 1. I would like to add a scope to my Marlin81-DL which is untapped only has the side mounts for the peep site. Would this work and is there any other parts I would need or would this work alone?

A: Have you checked the compatibility list on the B&H website? Krag Cooley 60 and 600 H&R 65, 165, 150, 151, 250, 251, 264, and 265 H&R 365, 450 & 550, 755, 765, 852, and 865 Marlin A1, 50, 39A (round barrel), 88, 89, 98, 80, and 81 Mossberg 25, 26, 42, 46M, 140, 142, and 146, 45-46 with 3/4" barrels Mossberg 40, 43, 44, 144, 46BT & 35m, 45, 46 with 13/16" barrels Mossberg 320, 340, 342 & 620, 640, 50, 51, 151, 152, 350, and 352 Remington 10, 11, 12, 34*, 341*, 510, 511, 512 & 521T, 12A, 121 with 3/4" barrels Remington 121 with 13/16" diameter barrels 18, 24 & 241, 33, 513S and 513T, 514 Savage 3, 4, 5, 6, 7, 19, 23, 40, 45, 219 26, 53, 56, 66, 57, 76, 4171/2, 762, 416, 417, 418, 418 1/2 Stevens-Springfield 83, 85, 87, 872 Winchester 03, 63, 42, 52 with the hole spacing different or the same Winchester 57, 69, 61 with round barrel, 61 with octagon barrel Winchester 69A, 72, 47, 74, 75 Sporter, 75 Target, 77

Q: 2. What is the matching mount with the rings for this Weaver 48402 base and for what size scope tube?

A: It depends on the size of the scope. For a 30mm scope I would recommend these rings: https://bhpho.to/3wH85xo or this for a 1 inch scope: https://bhpho.to/34GrEK6

Q: 3. Which scope rings work best with this?

A: Weaver rings would work best with Detachable Side Mount #2.

Q: 4. What is spacing between side base holes...my 87a receiver machined hole for a base is @ 2 9/32"? Will the 4802 weaver #2 sidebase work with the above?

A: The manufacture does not list the spacing but the do list what is compatible. Krag Cooley 60 and 600 H&R 65, 165, 150, 151, 250, 251, 264, and 265 H&R 365, 450 & 550, 755, 765, 852, and 865 Marlin A1, 50, 39A (round barrel), 88, 89, 98, 80, and 81 Mossberg 25, 26, 42, 46M, 140, 142, and 146, 45-46 with 3/4" barrels Mossberg 40, 43, 44, 144, 46BT & 35m, 45, 46 with 13/16" barrels Mossberg 320, 340, 342 & 620, 640, 50, 51, 151, 152, 350, and 352 Remington 10, 11, 12, 34*, 341*, 510, 511, 512 & 521T, 12A, 121 with 3/4" barrels Remington 121 with 13/16" diameter barrels 18, 24 & 241, 33, 513S and 513T, 514 Savage 3, 4, 5, 6, 7, 19, 23, 40, 45, 219 26, 53, 56, 66, 57, 76, 4171/2, 762, 416, 417, 418, 418 1/2 Stevens-Springfield 83, 85, 87, 872 Winchester 03, 63, 42, 52 with the hole spacing different or the same Winchester 57, 69, 61 with round barrel, 61 with octagon barrel Winchester 69A, 72, 47, 74, 75 Sporter, 75 Target, 77

Q: 5. So I have a marlin 81 DL untapped open sites only but want to add a scope ...is this what I need and is there another part needed as well If so which part?

A: It is a side mount for a gun with a Weiver mount. Is that what you are trying for?

Q: 6. does the weaver top mount base 63 compatible with Henry 1009B 30-30?

A: It is compatible with single rings and Marlin 45, 30AS, 336, 444, 1894, 1895, Camp 9, 308, 338, 1895 Western Field 740 Mossberg 640

Q: 7. Do i need screws with this mount?

A: You would not as the screws come with the Vortex Cantilever Mount.

Q: 8. Will the weaver side mount base #2 mount on a Remington 513T without drilling and tapping?

A: You will have to get your 513T drilled and tapped for a weaver side mount base #2. If you want to mount it on a Remington 513T.

Q: 9. Is this rated for rifle mount?

A: Luna Optics Laser IR Illuminator (Picatinny/Weaver Mount) BH #LULNELIR3 • MFR #LN-ELIR-3 For precision alignment with the line of sight of your night optic, the illuminator also has beam direction adjustments for two axes. For Any NVD with Picatinny/Weaver Rail

Q: 10. Can a ratchet handle be used to replace the fixed handle?

A: It cannot you will void the warranty.