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Magpul MAG291-BLK PMAG GEN M3 308 Win,7.62 NATO AR-10 SR2, M110 20rd Detachable Magazine
Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.
$22.99
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SKU: MAG291-BLK-873750008509
Overview
Built for SR25/M110 pattern rifles and other compatible .308/7.62 NATO platforms, this 20-round polymer magazine is intended for shooters who want a straightforward, reliable option for range use or field carry. It includes paint pen dot matrix panels for marking, a flared floorplate for easier handling and disassembly, and an anti-tilt, self-lubricating follower paired with a stainless steel spring. The ribbed front and rear gripping surfaces support positive handling, while the included impact/dust cover adds practical protection during storage and transport. Compatibility is specific, so it is worth confirming your rifle pattern and ammunition type before use.
Why Hunters Choose the Magpul
True 20-round
Capacity for 308 Win and
Compatible Sr25/m11
SR25/M11 pattern rifles and AR-10
Polymer Construction
Keeps the magazine lightweight and
Anti-tilt, Self-lubricating
Follower supports reliable feeding
Stainless Steel
Spring is specified for corrosion
Key Features
- 20-round detachable magazine for 7.62x51 NATO and .308 Win cartridges
- Polymer construction with a black finish
- Designed for SR25/M110 pattern rifles and AR-10 model fit
- Paint pen dot matrix panels allow identification marking
- Flared floorplate aids handling and disassembly
- Anti-tilt, self-lubricating follower supports reliability
- Multi-use impact and dust cover included
Best Used For
- AR-10 or SR25-pattern rifle owners needing a 20-round magazine for SAAMI-spec 7.62x51/.308 ammunition
- Hunters who want a lightweight polymer magazine for field carry and range use
- Users who mark magazines for load or rifle identification with paint pen dot matrix panels
- Shooters who prefer easier magazine handling and disassembly with a flared floorplate
- Owners of compatible commercial rifles seeking a detachable magazine with anti-tilt follower and dust cover
Specifications
| Anti Tilt Follower | Yes |
|---|---|
| Blade Finish | Black |
| Bolt Lock Functionality With Newer Dpms Gii Based Models | Not optimized |
| Caliber | 308 Win,7.62 NATO |
| Capacity | 20 |
| Compatibility | SR25/M11 pattern rifles; Armalite AR-1A; Colt LE91-16S; CORE Rifle Systems CORE3; JP Enterprises LRP-7; KAC SR25; LaRue OBR; Les Baer .38; LMT .38 MWS; LWRCI REPR; Mega Arms MATEN; Noveske Gen III N6; POF P-38; Ruger SR-762; Ruger Precision Rifle; S&W M&P1; SIG716 |
| Drop Free From All Lower Receivers | No |
| Flared Floorplate | Yes |
| Front And Rear Texture | Yes |
| Longer Than Saami Spec Match Ammunition Compatibility | May not drop free from all makes of lower receivers |
| Made In Usa | Yes |
| Material | Polymer |
| Model | PMAG |
| Model Fit | AR-10 |
| Multi Use Impactdust Cover | Yes |
| Paint Pen Dot Matrix Panels | Yes |
| Ribbed Gripping Surface | Yes |
| Saami Spec Ammunition | Yes |
| Self Lubricating Follower | Yes |
| Stainless Steel Spring | Yes |
Pros
- True 20-round capacity for 308 Win and 7.62 NATO use
- Compatible with SR25/M11 pattern rifles and AR-10 platforms
- Polymer construction keeps the magazine lightweight and cost effective
- Anti-tilt, self-lubricating follower supports reliable feeding
- Stainless steel spring is specified for corrosion resistance
- Flared floorplate and textured gripping surfaces aid handling and disassembly
Considerations & Trade-offs
- This magazine is designed for SAAMI-spec ammunition, so longer-than-SAAMI-spec match loads may not be the best fit for every setup.
- It is compatible with a defined group of SR25/M110-pattern rifles, but it is not compatible with several other magazine-pattern platforms listed in the product details.
- The product notes that it may not drop free from all lower receivers when used with longer-than-SAAMI-spec ammunition.
- Bolt-lock functionality is not optimized with newer DPMS GII-based models, even though some older compatible rifles are listed.
Suggested Comparisons
- AR-10 pattern magazines
- 7.62 NATO / .308 Winchester magazines
- Detachable box magazines
- Rifle magazine accessories
Suggested Accessories
- Magazine pouch
- Rifle sling
- Ammo storage box
- Cleaning kit
Frequently Asked Questions
Is this magazine compatible with AR-10 pattern rifles?
It is listed as model fit AR-10 and is described as compatible with SR25/M11 pattern rifles. The product data also lists compatibility with several specific commercial rifles, but compatibility is not universal across all .308/7.62 rifles.
What caliber and capacity does it hold?
The listed caliber is .308 Win / 7.62 NATO, and the capacity is 20 rounds.
Is it designed for SAAMI-spec ammunition?
Yes. The description says it is designed specifically for SAAMI-spec ammunition.
What features are included for handling and identification?
The product data lists paint pen dot matrix panels on the bottom for identification marking, a flared floorplate to aid handling and disassembly, and ribbed gripping surfaces with front and rear texture for positive handling.
Are there any compatibility limits I should know about?
Yes. The description says it is not compatible with Armalite AR-1B, Springfield Armory M1A, Rock River Arms LAR8, FN SCAR 17S, PTR-91, HK417, or other rifles using M14, FN FAL, or HK 91/G3 patterned magazines. It also notes that it may not drop free from all lower receivers when used with longer than SAAMI-spec match ammunition.