Window: 16 × 16 mm, 3 MOA red dot, unlimited eye relief .

Body: CNC-machined 7075‑T6 aluminum with matte finish, IPX7 waterproof (1 m) & 1500 G shock rating .

Illumination:

• Sentinel-M: manual (10 steps) + “Shake N’ Wake” motion activation

• Sentinel-A: automatic light sensor adjusts continuously (no manual override).

Battery: CR2032, bottom-loading design; Swampfox claims ~2 years of typical use.

Footprint: Shield RMSc — fits subcompact pistols like Glock 43X, Hellcat, P365 XL, M&P Shield etc.

Compact & Lightweight: Only 0.62 oz with a footprint perfect for slim-handguns.

Durable Construction: Tough aluminum build, proven waterproof and shock-resistant.

Long Battery Life: Many users report >1–2 yrs; one even said it lasted over 3 yrs and still going .

Good Value: Offers features like shake-to-wake and choice of manual/auto at very competitive price .

Range Use: Excellent for range/target shooting; fast dot acquisition .