Magpul
Overview
The Magpul MBUS Gen 3 Folding Rear Sight is a rear sight. Compare prices from multiple merchants and find the best deal.
Specifications
August 2026 on GunPartPicker
Magpul MBUS Gen 3 Folding Rear Sight was the ninth most added rear sight on GunPartPicker in August 2026. Builders have been adding it to their builds on GunPartPicker since March 2026. All time, it is the tenth most added rear sight on the site.
Availability is good: it was in stock at one retailer or another nearly every day in August 2026, but today the one retailer we track is out of stock. Prices barely moved in August 2026, holding around $56.95, so there haven't been real sales lately. Listed prices start at $56.95 at AR15 Discounts for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 31 retailers
Not sure which rear sight to pick?
We ranked every rear sight by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Rear Sight Guide →Frequently Built With
The part most often added in each category by the 13 builds that include this one
Magpul MBUS 3 Front Sight - Stealth Gray
PSA AR-15 "Stealth" Stripped Lower Receiver
PSA AR-15 Built Stealth Upper Receiver - No T Marks - 516444539
SB Tactical Adjustable 5 Position Arm Brace No Buffer Tube, Black - SBA4X-01-SB
Magpul MOE K2 Grip Polymer Gray
Aimpoint Duty RDS-MR Multi-Reticle Red Dot Sight - 39mm Mount
No reviews yet. Be the first to review this product!