Description
If you run a 6.5 Grendel AR-15, this ASC magazine brings serious durability to your setup without the weight penalties of polymer. These are machined from 0.020-gauge 410 stainless steel and heat-treated for superior strength, so you're not dealing with anything that will swell in summer heat or crack when temps drop.
What Makes This ASC 5-Round Magazine Stand Out
The real standout here is the Marlube finish, which is a wear-in, not wear-off coating developed from ASC's aerospace background. The more you run this magazine, the better it functions. That blue polymer follower isn't just for looks either. It lets you immediately see if you're loaded up without opening the mag. Chrome silicon springs keep everything moving smoothly, and the anti-tilt follower design prevents rounds from tipping and creating feeding issues.
Ideal for Precision and Bench Work
With a compact 5-round capacity and an interior length of 2.316 inches plus or minus 0.002 inches, this magazine is purpose-built for precision work and bench shooting where smaller magazine footprints keep things manageable. The tight tolerances make it excellent for handloaders who need consistency. Drop-in fit on AR platform rifles, and the stainless steel construction with a 300-series floor plate handles whatever conditions you throw at it without corrosion concerns.
Built in the USA with Backing
Manufactured start to finish in America using robotic precision manufacturing, each magazine gets the quality control most budget options skip. ASC stands behind these with a limited lifetime warranty covering defects in materials and workmanship under normal use.
Key Specifications
- Caliber: 6.5mm Grendel
- Capacity: 5 rounds
- Material: 410 stainless steel (0.020 gauge)
- Finish: Black Marlube
- Follower Color: Blue polymer
- Interior Length (OAL): 2.316 inches +/- 0.002 inches
- Floor Plate: 300 series stainless steel
- Spring: Chrome silicon
- Follower Type: Enhanced anti-tilt polymer
- Manufacturer: Ammunition Storage Components (ASC)
- Made In: USA
- Model Number: 5-65-SS-BM-BL-ASC
- UPC: 818805010236
- Warranty: Limited lifetime
What’s Included
- ASC AR-15 6.5 Grendel 5-round stainless steel magazine
Frequently Asked Questions
Will this 5-round ASC magazine work with both 6.5 Grendel and 6mm ARC?
Yes, this magazine is compatible with both 6.5 Grendel and 6mm ARC ammunition due to similar cartridge dimensions. The interior dimensions are specifically optimized for reliable feeding with both calibers, giving you flexibility in your reloading and ammunition choices.
How does the Marlube finish actually improve over time?
The Marlube coating is engineered to wear-in rather than wear-off. As you use and manipulate the magazine, the coating burnishes into the surface and provides self-lubricating properties, which means feeding becomes smoother with more rounds fired. It's a coating developed from ASC's aerospace manufacturing roots.
Is this magazine suitable for reloading?
Yes, the interior dimensions of 2.316 inches plus or minus 0.002 inches are specifically designed for handloaders who need precision consistency. Many reloaders prefer this exact specification for tight tolerances and reliable feeding of custom loads.
Why would I choose a 5-round capacity over a larger magazine?
The compact 5-round design is ideal for bench rest shooting, prone shooting from bipods, and precision rifle work where a smaller profile keeps things manageable. It also fits nearly flush with the magazine well, which some shooters prefer for their setup. The lower capacity means slower cycling, which is valuable when running expensive 6.5 Grendel ammunition.





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