Mbus 3 Iron Sight Flip-up Front & Rear Sight Set Fits Picatinny Rail Polymer Sight Aluminum Screws Backup Sight Low-Profile Iron Sight Black

• Customization: Available
• Material: High-Impact Reinforced Polymer
• Structure: Other
• Model NO.: PT-MAG1166-BLK/PT-MAG1167-BLK
• Type: Scope Mount & Accessories
• Platform: 25g/30g
• Compatible Rail: Mil-Std-1913 Picatinny Rail
• Color: Black
• Transport Package: Carton&Foam
• Trademark: PETRAM
• Origin: Made in China
• Production Capacity: 10000PCS / Month

Product Description

Durable MBUS3 Sight Flip Up Front Rear Polymer Backup Low Profile Picatinny Rail Iron Sight

Product Overview

The MBUS 3 Front Backup Sight delivers the durability and lightweight performance of the original MBUS within a compact polymer housing that minimizes rail space occupation. It folds down to only 0.47" tall × 1.38" wide when mounted on any M1913 Picatinny rail and reduces snag risks during movement. This spring-loaded sight features fast ambidextrous deployment, tool-free elevation tuning, and dual interchangeable front post widths to accommodate all shooting conditions.
 

Features

 

• Constructed from lightweight reinforced polymer, engineered for mobility, durability and reliability
• Compatible with all M1913 Picatinny rails
• Equipped with spring-loaded, ambidextrous release buttons for fast deployment from folded storage
• Built to standard AR sight height for universal cross-platform compatibility
• Rear Sight Exclusive Specs:
  Folded dimensions: 0.55″height × 1.38″ width, weight 1.06 oz
  Features tool-less windage adjustment
  Comes with a rotating rapid-select aperture window: wide aperture for close-range/low-light use, narrow aperture for long-distance precision shooting
• Front Sight Exclusive Specs:
  Folded dimensions: 0.47″ height × 1.38″ width, weight 0.88 oz
  Fitted with an MBUS Pro-style tool-less elevation adjustment wheel
  Dual interchangeable sight post widths integrated: 0.06" Standard post for better visibility, 0.04" Match post for enhanced long-range accuracy

 

Product Parameters

 

Position	Front	Rear
Height above rail, stowed	-0.47 in.	-0.55 in.
Platform	AR10/ M110, AR15/M4	AR10/ M110, AR15/ M4
Platform	25g	30g
Platform	ELEVATION ADJUSTMENT -1 MOA(1.131/100 m) per click with a 14.5" sight radius -0.7 MOA(0.820"/100 m)per click with a 20" sight radius	Center of aperture to top of rail: 1.42 in. WINDAGE ADJUSTMENT ~-0.5 MOA (0.606"/100m) per click with a 14.5" sight radius ~0.4 MOA(0.439"/100 m) per click with a 20" sight radius

 

Installation Instructions

 

• Gather the complete sight set (front sight + rear sight), along with the included mounting screws and wrench tool 
• Align the sight base with your MIL-STD-1913 Picatinny rail and slide it to your desired mounting position
• Tighten the mounting screws securely with the wrench to ensure full contact between the base and rail with zero wobble or play
• Press the ambidextrous side release button to test deploy and fold functionality, verifying the sight locks firmly into place in both stowed and deployed positions

Adjustment Instructions

• Front Sight Elevation Adjustment                                                                                                                                  Manually rotate the top knurled adjustment wheel clockwise or counterclockwise for fine elevation tuning to match varying target distances. The sight post rotates 90° to switch between Standard width and Match precision width posts
• Rear Sight Windage Adjustment                                                                                                                                    Rotate the side knurled knob to fine-tune windage zero. Twist the aperture selector base to toggle between wide and narrow aperture modes;                                                                                                                                      Wide aperture: Optimized for close-range shooting and low-light environments                                                        Narrow aperture: Designed for long-distance aiming and bright light conditions

Maintenance Guidelines

• Wipe surface dust and grime using a dry cloth or soft bristle brush; avoid harsh acidic or alkaline cleaning agents
• Periodically inspect all mounting screws to prevent loosening during use
• Do not store the sight in areas with prolonged direct sunlight or high temperatures to slow material degradation
• Internal spring assemblies must not be disassembled by untrained personnel to avoid permanent component damage

Ideal Users

• Outdoor gear enthusiasts seeking lightweight, portable foldable sighting accessories
• Hobbyists for film prop builds and model modifications who desire authentic styling and durable hardware
• Collectors looking for classic tactical sight assemblies for display and collection purposes
• Recreational outdoor users in need of backup sighting hardware compatible with Picatinny rail platforms

FAQ

1. Q: Can you do OEM or ODM?
A: Yes, we offer OEM & ODM. We can customize Logo & Slogan, as well as package and manual of the products. We can also          make mold as per clients requests.

2. Q: How can you guarantee quality?
A: Always a pre-production sample before mass production;Always final Inspection before shipment.

3. Q: How long do i need to wait before my goods arrive?
A: It depends on the logistic type that you have selected, we offer UPS Express (1-2 business days), UPS Saver (2-3 business          days), UPS Korea (7-9 business days)  and a variety of Ocean logistic services (11-30 business days). Usually it takes 5-35                business days for our clients to receive their goods after the order process is completed.

4. Q: What should we do if there is some problems with the products we bought from you?
A: At PETRAM we always send out sample product or examination videos before we begin mass production or before we start            shipping. However, defects or errors may occur due to variety of reasons. Please contact us and point out exactly what the                  problem is and we will give our clients at least 2 options to choose from.

5. Q: Does package come with battery inside?
A: It depends on the battery type. Item that comes CR1632, CR2032, CR2450, CR123A or any other battery types that starts with      "CR" will comes with battery inside. Batteries like AA or AAA, we most likely will not have the battery included due to logistic              reasons. Except Walker's Ear Muff, those ear muffs comes with 2 AAA batteries. We will include batteries in Walker's Ear Muff.

6. Q: Do you provide samples?
A: Yes we offer samples with extra charge. We charge the price of the product and 10 USD for logistic fees, we will most likely send    you the item via UPS, FEDEX or DHL.

7. Q: What are your terms of payment?
A: We only accept T/T at the moment.

8. Q: How can I track my order?
A: If you choose Ocean logistic service, we will provide you with a FEDEX or UPS tracking number on the day the order leaves port    and tracking will update when order arrives at the designated port.If you choose Air logistic service, we will provide you with a              UPS tracking number on the day the order gets on the plane and tracking will update within 1 business day.