SR-25 pattern magazine

An SR-25, AR-10 or LR-308 pattern magazine is a type of detachable firearm magazine based on the original Armalite AR-10 "waffle" magazine design introduced in the late 1950s, used for .308 Winchester and 7.62×51mm NATO cartridges.

The design has been used on many AR-10 derivatives (generally referred to as AR-308 style rifles), for instance in the Knight's Armament SR-25 and DPMS Panther LR-308, as well as bolt-action rifles such as the Mossberg MVP .308, Ruger Precision Rifle and Q FIX. Aftermarket magazines are produced by Magpul, Lancer Systems, and others.^[1] Not all AR-308 rifles use magazines compatible with the SR-25 pattern. For example, HK417/MR308/MR762 uses a proprietary design. Notably, Armalite switched from their original pattern magazines to modified M14 magazines in 1996 with their new AR-10B model,^[2] but reintroduced their original (SR-25 pattern) magazine design with the AR-10A model in 2012.^{[3][better source needed]}

Firearms compatible with SR-25 pattern magazines

AR-10/AR-308 type rifles

• Armalite AR-10A
• Bushmaster .308 ORC
• Colt CM901-16S (.308 configuration)^[4]
• CORE Rifle Systems CORE30^[5]
• Diamondback DB10
• DPMS LR308
• JP Enterprises LRP-07^[6]
• KAC SR-25
• LaRue OBR
• Les Baer .308^[7]
• LMT .308 MWS/L129A1
• LWRCI REPR^[8]
• M110 SASS
• Mega Arms MATEN
• POF P-308 and Revolution/Rogue
• PSA PA-10
• Remington R-25^[9]
• Remington RSASS
• Ruger SR-762 and SFAR
• SIG716^[10]
• Smith & Wesson M&P10
• Colt Canada C20 DMR
• Sako M23 (7.62 TKIV 23)

Other rifles

• Brügger & Thomet APC308 Carbine and DMR^[11]
• IWI Tavor 7^[12]
• IWI ACE (7.62 NATO version)^{[13][better source needed]}
• McMillan CS5^{[14][better source needed]}
• Mossberg MVP
• POF USA ReVolt Heavy
• Q FIX
• SIG MCX Spear
• Troy Pump Action Rifle (PAR)

Cartridges compatible with SR-25 pattern magazines

Some cartridges are dimensionally similar to .308 Winchester to fit into SR-25 pattern magazines, its not uncommon for the cartridges to have the same rim diameter, which allows the use of the same bolt

Cartridge	Requires Modification to the magazine	Capacity in standard magazine
.260 Remington
6.5mm Creedmoor	no	20
6.5×47mm Lapua	no	20
.277 Fury	no	20
7mm-08 Remington
.308 Winchester/7.62×51mm NATO	no	20
8.6mm Blackout	no	20
.338 Federal[15]	yes	?
.45 Raptor	yes	?
RAS-12 Shotgun[16]	yes	5

See also

• STANAG magazine, a standardized firearm magazine based on the 5.56x45 mm cartridge

References

1. Modern AR-10 Magazines: Our Four Top Picks For Dependable, Well-Made AR-10 Magazines - Gun World Magazine
2. The Original Retro AR-10: Armalite's AR10B – Forgotten Weapons
3. New from Armalite: AR-10A - The Truth About Guns
4. DefenseReview.com - DR Exclusive: Colt CM901 7.62x51mm /.308 Win
5. Shooter's Bible Guide to AR-15s, 2nd Edition: A Comprehensive Guide to Modern Sporting Rifled and Their Variants, by Doug Howlett and Robb Manning, November 1, 2016
6. JP LRP-07 Long Range Precision Rifle 7.62mm with Left-Side Charging System – DefenseReview.com
7. Les Baer .308 Ultimate Match Rifle
8. Return of the REPR: Wringing Out LWRCI's REPR MKII Rifle
9. American Hunter | Remington R-25
10. GUNS Magazine SIG SAUER SIG716 Patrol - GUNS Magazine
11. It's finally here! The B&T APC308 Carbine and DMR
12. Hints of the Future: The TAVOR 7 - The Mag Life
13. Gun Review: IWI Galil ACE in 7.62 NATO - The Truth About Guns
14. Gun Review: McMillan CS5 - The Truth About Guns
15. "Successor to the Scout: Q's 8.6mm Fix". YouTube. 14 April 2023. Archived from the original on 2024-06-14.
16. "Intrepid RAS-12 / AR-12 - Modern Firearms". 2024-06-01. Archived from the original on 2024-06-01. Retrieved 2024-09-13.