The Magpul PMAG 25 M118 LR/SR GEN M3 Window magazine is a high-performance rifle magazine designed for SR-25, M110, AR-10, and other LR/SR pattern rifles chambered in 7.62×51 NATO or .308 Winchester. Built with Magpul’s advanced polymer construction and precision internal components, this 25-round detachable magazine delivers reliable feeding, rugged durability, and consistent performance for precision shooting, training, and tactical use.
Constructed from impact-resistant polymer, the PMAG GEN M3 provides a lightweight yet extremely durable alternative to traditional steel magazines while maintaining dependable feeding under demanding conditions.
Designed for SR-25 / AR-10 Pattern Rifles
The PMAG 25 M118 LR/SR GEN M3 Window is engineered to fit SR-25 / M110 pattern rifles, including many AR-10 style platforms and precision rifles chambered in 7.62×51 NATO or .308 Winchester.
This magazine is optimized to reliably feed longer 7.62 NATO ammunition such as M118LR, making it an excellent option for precision rifle platforms and long-range shooting applications.
With its 25-round capacity, this magazine provides extended shooting time while maintaining a manageable profile for range training and precision rifle setups.
Windowed Design for Quick Round Count
The GEN M3 Window model features a transparent window with a high-visibility indicator, allowing shooters to quickly check remaining ammunition without removing the magazine from the firearm.
Key construction features include:
- Impact-resistant polymer magazine body
- Transparent round-count window
- Anti-tilt follower for reliable feeding
- Stainless steel internal spring
- Removable floorplate for easy cleaning
- Textured exterior for improved grip
These features help ensure smooth feeding, durability, and consistent performance during extended shooting sessions.
Ideal for Precision Rifles, Training, and Tactical Use
The Magpul PMAG 25 M118 LR/SR GEN M3 Window magazine is a trusted option for shooters running AR-10 and SR-25 pattern rifles. It is well suited for:
- Precision rifle shooting
- Long-range training
- Tactical rifle setups
- Spare magazines for AR-10 / SR-25 rifles
Whether you are upgrading your precision rifle setup or adding dependable magazines to your gear, the Magpul PMAG 25 M118 LR/SR GEN M3 Window 25-round magazine delivers proven reliability and performance.
Features
- Designed for SR-25 / M110 / AR-10 pattern rifles
- Chambered for 7.62×51 NATO / .308 Winchester
- 25-round capacity
- Durable impact-resistant polymer construction
- Transparent window for round-count verification
- Anti-tilt follower for reliable feeding
- Stainless steel internal spring
- Removable floorplate for maintenance
- Made in the USA
Specifications
Manufacturer: Magpul Industries
Model: PMAG 25 M118 LR/SR GEN M3 Window
Manufacturer Part Number: MAG577
Platform: SR-25 / AR-10 Pattern Rifles
Caliber: 7.62×51 NATO / .308 Winchester
Capacity: 25 Rounds
Material: Reinforced Polymer
Finish: Black
UPC: 840815100140
This product was added to our catalog on Friday 13 March, 2026.
