Magpul MBUS MSR Back-up Sight - Rear Sight - Flat Dark Earth Manufacturer-Boss Audio Systems And the automatic Startup Balance

And the automatic Startup Balance feature keeps it 100

Power Tool Accessory Type: Sanding/Grinding/Polishing Accessory

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FMC lens with excellent transmittance and the 70 mm large diameter objective lens help increase the brightness of the image

Specifications

Magpul MBUS MSR Back-up Sight - Rear Sight - Flat Dark Earth Manufacturer-Boss Audio Systems And the automatic Startup BalanceElevation adjustable front sight Dual aperature rear sight Fits all mil spec 1913 Picatinny rail equipped firearms Affordable, injection moulded folding front and rear back up sights. Elevation adjustable front sight has a built in, spring loaded post detent. (Note: Polymer construction not compatible with railed gas blocks.) Dual aperture rear sight is adjustable for windage. Its tailored to the AR 15 platform. Fits all mil spec 1913 Picatinny rail