My Cart: 0 item(s)
Magpul MBUS Gen 2 – Flip-Up Backup Sights for AR-15 | MSP
Magpul MBUS Gen 2 Sights – Rugged, Lightweight Flip-Up AR BUIS
The Most Trusted Polymer Backup Sights for AR-15 Builds
The Magpul MBUS Gen 2 sights are the original go-to flip-up backup iron sights (BUIS) for AR-platform rifles. Lightweight, impact-resistant, and easy to deploy, these sights are trusted by tens of thousands of shooters for range use, defensive setups, and tactical builds.
With spring-loaded pop-up action, tool-free adjustment, and compatibility with any Picatinny rail, MBUS Gen 2 sights remain a best-selling, battle-proven solution — all at a price that’s hard to beat.
Why Choose Magpul MBUS Gen 2?
-
✔️ Impact-Resistant Polymer – Strong, lightweight, and field-ready
-
✔️ Spring-Loaded Deployment – Push-button flip-up design
-
✔️ Tool-Free Adjustment – Windage (rear) & elevation (front)
-
✔️ AR-Height Sights – Perfect for co-witnessing with red dots
-
✔️ Slim Profile When Folded – Won’t interfere with optics
-
✔️ Fits Any Picatinny Rail – AR-15, AR-10, carbines, and more
-
✔️ Trusted by Shooters Worldwide – Field-proven reliability
-
✔️ Made in the USA by Magpul
MBUS Gen 2 vs MBUS Gen 3 vs MBUS Pro
| Feature | MBUS Gen 2 | MBUS Gen 3 | MBUS Pro (Steel) |
|---|---|---|---|
| Material | Polymer | Polymer (Gen 3) | All-Steel |
| Profile | Moderate | Slimmer | Ultra-Low |
| Weight | Lightweight | Slightly Lighter | Heaviest |
| Price | $ | $$ | $$$ |
| Best For | Budget + Range Use | Lightweight Builds | Duty / Optics Builds |
💡 MBUS Gen 2 gives you Magpul durability at the lowest weight and price without sacrificing functionality.
Available MBUS Gen 2 Models
-
MBUS Gen 2 Front Sight
Spring-loaded pop-up with elevation adjustment -
MBUS Gen 2 Rear Sight
Dual-aperture with windage dial -
MBUS Gen 2 Sight Set
Save when you bundle front & rear together
Available in Black or Flat Dark Earth (FDE) to match your AR build.
MBUS Gen 2 FAQs
Q: What makes Gen 2 different from the original MBUS?
A: Gen 2 offers a lower profile, more refined look, and easier manipulation than the original MBUS series — at the same affordable price.
Q: Can these sights co-witness with red dots?
A: Yes. MBUS Gen 2 are standard AR-height sights and work with absolute or lower 1/3 co-witness red dot setups.
Q: Are these sights durable enough for defense or field use?
A: Absolutely. While they’re made from polymer, they’re reinforced and have been field-tested for years under hard use.
Q: Will they fit my rifle?
A: MBUS Gen 2 sights mount to any 1913 Picatinny rail — perfect for AR-15s, AR pistols, or even some shotguns and carbines.
Q: Do I need tools to zero them?
A: No. Both windage (rear) and elevation (front) are adjustable by hand.
🛒 Shop MBUS Gen 2 Products
-
Magpul MBUS Gen 2 Front Sight – Black / FDE
-
Magpul MBUS Gen 2 Rear Sight – Black / FDE
-
MBUS Gen 2 Sight Set – Bundle & Save
🔗 Related Magpul & AR-15 Gear
🚀 Affordable, Battle-Proven Backup Sights
If you want the most bang-for-your-buck backup sight system, the Magpul MBUS Gen 2 is your answer. Lightweight, reliable, and easy to deploy, they’ve earned their reputation in training, defense, and tactical environments worldwide.
🛒 Order now from Mounts Plus — in stock, fast shipping, and satisfaction guaranteed.