The Magpul PMAG D-50 308 Win/762NATO 50Rd is a drum-style magazine designed for AR-10 and SR-25 pattern rifles chambered in .308 Winchester and 7.62 NATO.
Drum magazines solve the frequent reloading interruptions that come with standard-capacity box magazines. When you’re zeroing optics, running drills, or competing in matches where volume of fire matters, a 50-round capacity keeps you behind the rifle longer.
The D-50 feeds from a true drum body rather than stacking rounds in a single column. This design distributes the weight of 50 cartridges across a wider footprint, which balances differently than a quad-stack magazine of similar capacity.
Key Facts
Brand: Magpul
Model: PMAG D-50
Caliber: .308 Win / 7.62 NATO
Capacity: 50 rounds
SKU: MAG993-BLK
Will the Magpul D-50 308 Fit Your Rifle?
This drum magazine is built for AR-10 and SR-25 pattern rifles. Those platforms share a similar magazine well geometry, but not all .308 semi-autos use the same standard. DPMS-pattern lowers typically accept this magazine, while some proprietary systems do not.
If you run a .308 AR that takes standard SR-25 or DPMS Gen 1 magazines, the D-50 will likely drop in and lock. If your lower is from a manufacturer with a unique magwell spec, confirm compatibility before ordering. Call 817-393-4000 if you need help identifying your pattern.
How the D-50 Compares to Standard .308 Magazines
Most .308 AR magazines hold between 10 and 25 rounds. The D-50’s 50-round capacity doubles that upper range, which changes your shooting rhythm. You spend more time on target and less time swapping mags.
Drum magazines are heavier than box magazines when loaded. The added weight sits lower and forward of the magwell, which shifts the balance point of the rifle. Some shooters prefer this for bench or prone work; others find it cumbersome for offhand or dynamic shooting. The tradeoff is capacity versus handling.
Drums also require a different loading process than pushing rounds into a box magazine. Most drum designs use a ratcheting mechanism or a loading tool to wind tension into the internal spring. Call 817-393-4000 if you have questions about the loading procedure for this model.
What to Know Before You Buy a 50-Round .308 Drum
Drum magazines occupy more space in a rifle bag or range box than a stack of 20-round PMAGs. Plan your storage accordingly if you transport multiple rifles or accessories.
Some competitive shooting divisions restrict magazine capacity. If you shoot in organized matches, confirm that your division allows 50-round magazines before you invest. Drums excel in divisions with no capacity limit and in training environments where reload speed is not being timed.
Check your state and local laws before ordering. Several states cap rifle magazine capacity at 10 or 15 rounds. Texas does not restrict magazine capacity for rifles, but if you travel across state lines, know the rules where you’re headed.
Buying from Western Sport in Roanoke, TX
Western Sport is a licensed FFL/SOT dealer and gunsmith shop serving North Texas and the DFW area since 2007. Owner and gunsmith Lance Rankin and the team handle AR-15 magazines, ammunition and feeding accessories, transfers, and custom builds. Call 817-393-4000 for ordering or questions about fit and compatibility.
Frequently Asked Questions
Q: What rifles does the Magpul D-50 308 magazine fit?
A: The D-50 is designed for AR-10 and SR-25 pattern rifles chambered in .308 Winchester or 7.62 NATO. DPMS Gen 1 pattern lowers typically accept this magazine. If your rifle uses a proprietary magwell or a different .308 standard, confirm compatibility before ordering by calling 817-393-4000.
Q: How does a 50-round drum magazine compare to standard .308 box magazines?
A: A 50-round drum doubles the capacity of most high-capacity .308 box magazines, which top out around 20 to 25 rounds. The drum is heavier when loaded and changes the rifle’s balance, but it reduces reload frequency during extended shooting sessions and training drills.
Q: Can I use the Magpul D-50 308 in competition shooting?
A: You can use it in divisions that allow 50-round magazines. Some competitive formats restrict capacity to 10, 20, or 30 rounds, while others have no limit. Check the rules for your specific division before a match. Drums work well in 3-gun Unlimited and Open divisions.
Q: Is the D-50 drum magazine legal in Texas?
A: Texas does not restrict rifle magazine capacity, so the D-50 is legal to own and use in the state. If you travel to other states, verify their magazine capacity laws before crossing the border, as several states cap rifle magazines at 10 or 15 rounds.
Q: How do I load a drum magazine for a .308 rifle?
A: Drum magazines use an internal spring mechanism that must be tensioned as you load. The exact procedure varies by design; some drums use a ratcheting follower, others use a winding key or loading tool. Call 817-393-4000 for loading guidance specific to the Magpul D-50 308.
Q: How do I order the Magpul PMAG D-50 from Western Sport?
A: Place your order through the website or call 817-393-4000 to order by phone. Western Sport is an FFL dealer in Roanoke, Texas, serving the DFW area. Magazines ship to your door in most states; if you have questions about your state’s shipping rules or magazine laws, the team can help.
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