The Kensight Mfg BM #1 rear sight brings match-grade adjustability to your carry or duty pistol without the bulk of a target-focused design. Built from 4140 billet steel and hardened to exacting specifications, this competition-style rear sight delivers the precision of click-adjustable windage and elevation in a profile that won't snag holster or clothing. The BM #1 is engineered for shooters who want repeatability and reliability in daily use—not just at the range.
Every dimension is purpose-built for durability. The blade, sight body, and base are EDM-wire machined to maintain tight tolerances through thousands of rounds. The front hinge pin is hardened separately to Rc 60, eliminating a common weak point in adjustable sight designs. Beveled edges and radiused corners on the sight body reduce the risk of catching fabric or leather during the draw, a practical detail that separates a well-considered carry sight from a range-only piece.
Visibility matters in real shooting conditions. Fine serrations on the rear blade surface cut glare and help your eye pick up the sight picture quickly—whether you're working in bright sunlight or overcast conditions. The click-adjustable detents hold your zero consistently, giving you confidence that your setting stays put between range sessions or training days.
Key Features
- EDM-wire machined 4140 billet steel construction for precision and longevity
- Heat-treated to Rc 28–32 for durability and tight tolerances
- Hardened front hinge pin (Rc 60) resists breakage under heavy use
- Click-adjustable windage and elevation with repeatable detents
- Beveled edges and radiused corners minimize snagging on holster and clothing
- Fine-serrated blade surface reduces glare and improves sight acquisition
Specifications
| Brand | Kensight Mfg |
| Model | BM #1 |
| Type | Adjustable Rear Sight |
| Material | 4140 Billet Steel |
| Hardness (Body) | Rc 28–32 |
| Hinge Pin Hardness | Rc 60 |
| Adjustment Type | Click-adjustable Windage & Elevation |
Frequently Asked Questions
Is the BM #1 rear sight suitable for daily carry?
Yes. The beveled edges and radiused corners on the sight body are designed to minimize snagging on clothing and holster material, making it practical for carry guns as well as range and competition use.
How durable is the front hinge pin?
The front hinge pin is hardened separately to Rc 60, which eliminates a common failure point in adjustable sight designs and provides reliable, long-lasting service.
Will my adjustments hold zero?
Yes. The click-adjustable detents for windage and elevation provide consistent, repeatable settings that maintain your zero between range sessions.
Does the serrated blade help with sight picture?
The fine serrations on the rear blade reduce light reflection, helping you pick up the sight picture more quickly in all light conditions.
