Welcome to the #1 Online Parts Store!

Welcome to the #2 Online Parts Store!

Welcome to the #3 Online Parts Store!

  • Wishlist
  • My Account
    • Login
    • Sign Up
  • 0
Toggle menu
Arms Unlimited
×
×

    Shop By Category

  • Books & Manuals
  • Magazines
  • Pistol Parts
  • Rifle Parts
  • Tools
  • Shop By Brand

  • Colt
  • Magpul
  • AU
  • MaTech
  • Simunition
  • View all Brands
  • Main Menu

  • Product Warranty Registration
  • Rifle Parts
  • Pistol Parts
  • Magazines
  • Press Releases
    • Books & Manuals
  • Firearms
  • Shipping & Returns
  • Contact Us
  • RFQ
  • Find Colt Serial Number
  • Gift Certificates
  • Login or Sign Up

    Shop By Category

  • Books & Manuals
  • Magazines
  • Pistol Parts
  • Rifle Parts
  • Tools
  • Shop By Brand

  • Colt
  • Magpul
  • AU
  • MaTech
  • Simunition
  • View all Brands
  • Main Menu

  • Product Warranty Registration
  • Rifle Parts
  • Pistol Parts
  • Magazines
  • Press Releases
    • Books & Manuals
  • Firearms
  • Shipping & Returns
  • Contact Us
  • RFQ
  • Find Colt Serial Number
  • Gift Certificates
  • Login or Sign Up

Shop by Category

  • Books & Manuals
  • Magazines
  • Pistol Parts
  • Rifle Parts
  • Tools
  • Shop by Brand

  • Colt
  • Magpul
  • AU
  • MaTech
  • Simunition
  • View all Brands
    • Home
    • Rifle Parts
    • Magpul MBUS Back-Up Folding Front Sight
  • Magpul MBUS Back-Up Folding Front Sight
  • Magpul MBUS Back-Up Folding Front Sight

    Magpul MBUS Back-Up Folding Front Sight

    Magpul

    MSRP: $39.95
    Price: $37.95
    SALE: $24.00
    (You save $15.95 )
    (41 reviews) Write a Review
    SKU:
    MAG247-BLK

    Adding to cart… category.add_cart_announcement
    Add to Wish List
    • Create New Wish List
    • Facebook
    • Email
    • Print
    • Twitter
    • Overview
    • Reviews

    Product Description

    The MBUS (Magpul Back-Up Sight) is a low-cost, color injection molded, folding back-up sight. The MBUS Front Sight is adjustable for elevation and fits most 1913 Picatinny-railed hand guards, but is specifically tailored to the AR15/M16 platform.

    Made in U.S.A.

    Features:

    • Impact resistant polymer construction provides light weight and resists operational abuse
    • Spring-loaded flip up sight easily activated from either side or by pressing the top
    • Detent and spring pressure keeps sight erect but allows for unobstructed folding under impact, etc.
    • Clamps to most any MIL-STD-1913 Picatinny/STANAG 4694 railed hand guard* and provides the same height-over-bore as standard A2 irons
    • Protective wings shield the spring-locking A2 front sight post
    • Elevation adjustment tool included, but most aftermarket A2 front sight adjustment tools may be used as well

    Specifications:

    • Weight, w/ hardware: 1.2 oz.
    • Height above rail, stowed: ~0.51 in.
    • Length, stowed: 2.6 in.
    • Length, deployed: 1.5 in.
     
    ELEVATION ADJUSTMENT
    ~1.6 MOA (1.886"/100m) per click with a 14.5" sight radius
    ~1.2 MOA (1.367"/100m) per click with a 20" sight radius
     
    *NOTE: Cannot be mounted to a railed gas block due to excess heat issues. Front MBUS must be mounted to a railed fore end on the same plane as the receiver rail. Because of this the sight is also not compatible with MOE Hand Guards.

    Product Videos

    Custom Field

    Product Reviews

    Write a Review

    Write a Review

    ×
    Magpul MBUS Back-Up Folding Front Sight
    Magpul
    Magpul MBUS Back-Up Folding Front Sight

    41 Reviews Hide Reviews Show Reviews

    • 5
      Great stuff!

      Posted by Mark Morse on 30th Aug 2018

      Sight is affordable and quality!

    • 5
      Great front Sight

      Posted by Raphael on 3rd Jul 2018

      At first I was a little skeptic about polymer sights since I have a pair of Troy sights on my AR, but these held up really great. I have them on my KSG and was a little worried about the kick throwing them off. Stayed in place perfectly. Would definitely recommend.

    • 5
      Magpul MBUS

      Posted by Daniel Poole Jr. on 13th Jun 2018

      Great sight, wouldn’t expect anything less from Magpul!

    • 5
      10/10 would do it again

      Posted by IG shredfasttakechances on 26th Apr 2018

      Great product, great place to buy it from. Fast free shipping. Best prices I’ve ever seen.

    • 5
      Sight delight

      Posted by Randy Martin on 1st Jan 2018

      Ordered front sight for my AR15 and am delighted with my purchase. Would definitely recommend Arms Unlimited to anyone wanting to buy guns, parts, or accessories.

    • Previous
    • Previous

    Recommended

    • SALE
      Magpul MBUS Back-Up Folding Rear Sight Magpul MBUS Back-Up Folding Rear Sight
      Quick view Details

      Magpul

      |

      sku: MAG248

      Magpul MBUS Back-Up Folding Rear Sight

      MSRP: $57.95
      Price: $55.05
      SALE: $34.00
      Choose Options
    • SALE
      Magpul MAG559 PMAG 10-Round GEN M3 .223 5.56 Magazine Magpul MAG559 PMAG 10-Round GEN M3 .223 5.56 Magazine
      Quick view Details

      Magpul

      |

      sku: MAG559

      Magpul PMAG 10-Round GEN M3 223/556 Magazine for AR15/M4

      MSRP: $14.95
      Price: $14.20
      SALE: $12.00
      Add to Cart
    ×
    ×
    Join Our Mailing List for special offers!
    Contact Us
    2061 Pabco Rd
    Henderson NV 89011
    Accounts & Orders
    • Wishlist
    • Login or Sign Up
    • Shipping & Returns
    Quick Links
    • Product Warranty Registration
    • Rifle Parts
    • Pistol Parts
    • Magazines
    • Press Releases
    • Firearms
    • Shipping & Returns
    • Contact Us
    • RFQ
    • Find Colt Serial Number
    Recent Blog Posts
    • Arms Unlimited to Exhibit at the 2026 World Defense Show in Riyadh, Saudi Arabia
    • Arms Unlimited to exhibit at SHOT Show 2026
    • Arms Unlimited to Exhibit at 2025 Nevada Sheriffs and Chiefs Association Conference
    • Arms Unlimited Awarded FBI Contract for Simunition M4 Conversion Bolt Kits
    • © Arms Unlimited