
Availability: In Stock
The Warne 45 Degree Picatinny Side Mount Adapter in Dark Earth is a no-nonsense offset rail solution for flat-top MSRs and other tactical rifles. Built from machined aluminum, this side-mounted adapter bolts directly to any Picatinny rail—upper receiver, handguard, or anywhere else you have picatinny real estate—and gives you a 45-degree angled platform for lights, lasers, backup sights, and other accessories. The offset angle keeps your primary optic's sight picture completely clear while positioning secondary gear exactly where you need it.
Installation is straightforward: no gunsmithing required, no drilling, no permanent modification to your rifle. The Dark Earth finish matches modern tactical gear and blends into most modern rifle platforms. Warne designed this mount with an eye toward weight consciousness—the aluminum body features cutout sections that shave ounces without compromising strength. The side rails have been updated with four cross slots total, giving you multiple mounting positions so you can fine-tune accessory placement to your setup.
Whether you're running a backup BUIS that needs to co-witness with a primary scope, mounting a weapon light off to the side, or securing a tactical sling attachment, the 45-degree offset angle is a time-tested formula in modern rifle builds. Warne's version keeps things simple and repeatable—exactly what you want from a mounting interface that will hold your gear rock solid downrange.
| Brand | Warne Scope Mounts |
| Model | A645 Side Mount Adapter |
| Mount Type | Picatinny Side Mount |
| Offset Angle | 45 degrees |
| Material | Machined aluminum |
| Finish | Dark Earth |
| Rail Slots | 4 cross slots |
Yes. The A645 mounts to any standard Picatinny rail, including the upper receiver rail on flat-top ARs, as well as handguard rails or any other Picatinny-equipped surface on your rifle.
Absolutely. You can mount it to your handguard rail to position a backup sight at the 45-degree offset, allowing it to co-witness with your primary optic mounted on the receiver without blocking your main sight picture.
No. The side mount adapts directly to existing Picatinny slots and requires no drilling, welding, or modification to your firearm. Installation is straightforward with basic tools.
The offset angle and four cross slots accommodate weapon lights, lasers, slings attachments, and other accessories designed with Picatinny interfaces. The 45-degree position keeps your primary optic's sight line clear.


SKU: 114461658 • Width: 3.5in • Height: 0.75in • Depth: 5.5in • Weight: 0.13oz





Availability: In Stock
The Warne 45 Degree Picatinny Side Mount Adapter in Dark Earth is a no-nonsense offset rail solution for flat-top MSRs and other tactical rifles. Built from machined aluminum, this side-mounted adapter bolts directly to any Picatinny rail—upper receiver, handguard, or anywhere else you have picatinny real estate—and gives you a 45-degree angled platform for lights, lasers, backup sights, and other accessories. The offset angle keeps your primary optic's sight picture completely clear while positioning secondary gear exactly where you need it.
Installation is straightforward: no gunsmithing required, no drilling, no permanent modification to your rifle. The Dark Earth finish matches modern tactical gear and blends into most modern rifle platforms. Warne designed this mount with an eye toward weight consciousness—the aluminum body features cutout sections that shave ounces without compromising strength. The side rails have been updated with four cross slots total, giving you multiple mounting positions so you can fine-tune accessory placement to your setup.
Whether you're running a backup BUIS that needs to co-witness with a primary scope, mounting a weapon light off to the side, or securing a tactical sling attachment, the 45-degree offset angle is a time-tested formula in modern rifle builds. Warne's version keeps things simple and repeatable—exactly what you want from a mounting interface that will hold your gear rock solid downrange.
| Brand | Warne Scope Mounts |
| Model | A645 Side Mount Adapter |
| Mount Type | Picatinny Side Mount |
| Offset Angle | 45 degrees |
| Material | Machined aluminum |
| Finish | Dark Earth |
| Rail Slots | 4 cross slots |
Yes. The A645 mounts to any standard Picatinny rail, including the upper receiver rail on flat-top ARs, as well as handguard rails or any other Picatinny-equipped surface on your rifle.
Absolutely. You can mount it to your handguard rail to position a backup sight at the 45-degree offset, allowing it to co-witness with your primary optic mounted on the receiver without blocking your main sight picture.
No. The side mount adapts directly to existing Picatinny slots and requires no drilling, welding, or modification to your firearm. Installation is straightforward with basic tools.
The offset angle and four cross slots accommodate weapon lights, lasers, slings attachments, and other accessories designed with Picatinny interfaces. The 45-degree position keeps your primary optic's sight line clear.
SKU: 114461658 • Width: 3.5in • Height: 0.75in • Depth: 5.5in • Weight: 0.13oz

