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The Midwest Industries AR Series Rear Flip-Up Sight is a robust backup iron sight built for AR-platform rifles that need reliable aiming when optics fail or batteries die. This flip-up rear sight deploys instantly with one hand and locks solidly in the raised position via a ball-bearing detent mechanism—no wobble, no guesswork. When you're not using it, the sight folds flat and out of the way so it won't interfere with your primary optic or laser. It's machined from 6061 T6 aluminum and hardcoat anodized for durability in the field, and it clamps securely to any flattop AR receiver.
What makes this sight genuinely useful is the dual-aperture A2-style design. The small .060" peep opening is built for precision at distance in good light, while the larger .200" opening handles close-quarters work and low-light conditions without sacrificing too much accuracy. Both apertures are calibrated on the same plane, so your point of impact stays consistent when you switch between them. The windage knob clicks in .65 MOA increments on 16" barrels and .49 MOA on 20" barrels, giving you fine control for zeroing and wind correction. A hex wrench is included for straightforward installation.
If you run an AR setup where iron sights are your backup—whether you're hunting, running the range, or building a truck gun—this sight earns its spot on your receiver. The flip-up design keeps your sight path clear when you don't need it, and the ball-bearing detent is smooth enough that repeated deployment won't wear it out. It's the kind of accessory that sits there quietly until the moment it matters.
| Brand | Midwest Industries |
| Product Type | Flip-Up Rear Sight |
| Material | 6061 T6 aluminum with hardcoat anodize |
| Aperture Openings | .060" and .200" diameter |
| Windage Adjustment (16" barrel) | .65 MOA per click |
| Windage Adjustment (20" barrel) | .49 MOA per click |
| Mounting | Clamps to flattop AR receivers |
| Aperture Design | A2-style dual-opening flip |
| Included Accessories | Hex wrench |
Yes, it clamps securely to any flattop AR receiver. Installation requires the included hex wrench and takes just a few minutes.
Absolutely. The sight folds flat and out of the way when not in use, so it won't interfere with your primary optic, red dot, or laser sight. It's designed as a backup sight for situations where your primary aiming system is unavailable.
The small .060" opening is optimized for longer-range, daylight shooting where precision matters. The larger .200" opening is better for close-range work and low-light conditions. Both are calibrated on the same plane, so your zero doesn't shift when you switch between them.
The windage knob clicks in precise increments: .65 MOA per click on 16" barrels and .49 MOA per click on 20" barrels. This allows for fine adjustment and reliable wind correction.

SKU: 115648934 • Width: 4.25in • Height: 1.25in • Depth: 5.75in • Weight: 0.19oz