Magpul MBUS Pro Sight – Front (MAG275) — the all-steel, QPQ-nitride flip-up front back-up sight: 0.43 in stowed, 1.5 oz, tool-less elevation with interchangeable 0.06 in standard and 0.04 in match posts, deploying to standard AR height.
$199.95
2 in stock (can be backordered)
The Magpul MBUS Pro Sight – Front is a rugged, all-steel elevation-adjustable back-up front sight with a QPQ nitride finish. Stowed it sits about 0.43 in high and 1.63 in long, weighs 1.5 oz, and deploys to 1.56 in above the rail — standard AR sight height. Elevation adjusts without tools at roughly 1 MOA per click on a 14.5 in sight radius (0.7 MOA at 20 in), and two post widths are supplied: 0.06 in standard and 0.04 in match. It mounts to MIL-STD-1913 Picatinny / STANAG 4694 rails including receiver-height railed gas blocks. Made in the USA.
Can the MBUS Pro front mount on a railed gas block?
Yes — Magpul lists receiver-height railed gas blocks as compatible.
Which rear sight matches it?
The MBUS Pro Sight – Rear (MAG276).
Is it adjustable without tools?
Yes — elevation is tool-less; the post width is changed by swapping the supplied posts.
Specifications from Magpul (magpul.com).
Firearm parts and accessories are supplied by 3 Gun Tactical, Licensed Firearms Dealer 50001578, Tingalpa QLD. Check your state’s firearm-parts and magazine rules before ordering.
The Magpul MBUS Pro Sight – Front is a rugged, all-steel elevation-adjustable back-up front sight with a QPQ nitride finish. Stowed it sits about 0.43 in high and 1.63 in long, weighs 1.5 oz, and deploys to 1.56 in above the rail — standard AR sight height. Elevation adjusts without tools at roughly 1 MOA per click on a 14.5 in sight radius (0.7 MOA at 20 in), and two post widths are supplied: 0.06 in standard and 0.04 in match. It mounts to MIL-STD-1913 Picatinny / STANAG 4694 rails including receiver-height railed gas blocks. Made in the USA.
Can the MBUS Pro front mount on a railed gas block?
Yes — Magpul lists receiver-height railed gas blocks as compatible.
Which rear sight matches it?
The MBUS Pro Sight – Rear (MAG276).
Is it adjustable without tools?
Yes — elevation is tool-less; the post width is changed by swapping the supplied posts.
Specifications from Magpul (magpul.com).
Firearm parts and accessories are supplied by 3 Gun Tactical, Licensed Firearms Dealer 50001578, Tingalpa QLD. Check your state’s firearm-parts and magazine rules before ordering.
| Brand | Magpul |
|---|---|
| Model | MBUS Pro Sight – Front |
| Magpul code | MAG275 |
| Type | Flip-up back-up front sight |
| Height stowed | ~0.43 in |
| Deployed height | 1.56 in above rail (standard AR height) |
| Length stowed | 1.63 in |
| Weight | 1.5 oz |
| Front posts | 0.06 in standard / 0.04 in match |
| Elevation adjustment | ~1 MOA per click at 14.5 in sight radius; tool-less |
| Mounting | MIL-STD-1913 Picatinny / STANAG 4694, incl. receiver-height gas blocks |
| Material | Steel, QPQ nitride finish |
| Country of origin | USA |
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