Need more rounds on tap for 3-Gun or multi-gun competition in Australia? The .308 +5 magazine extension base pad adds 5 rounds to your Magpul PMAG Gen III magazines — CNC-machined from anodised aluminium with knurled grip for fast reloads in any conditions.
Add 5 rounds to your Magpul PMAG .308 Gen III magazines with a CNC-machined aluminium extension base pad. Designed for 3-Gun and multi-gun competitors who need more rounds on tap without swapping magazines mid-stage.
Extended magazine base pads are legal in most 3-Gun divisions including Tactical and Open. Check your specific match rules for capacity limits — some divisions cap rifle magazines at 20 or 30 rounds.
Difficulty: Easy. Remove factory base plate, slide on the extension, and secure with the included grub screw. Under 5 minutes per magazine. Apply threadlocker to the grub screw for reliable retention under recoil.
No. This extension is designed exclusively for Gen III (Series III) Magpul PMAG .308 magazines. Gen II uses a different base plate geometry and is not compatible.
Recommended. The grub screw holds firm under normal use, but repeated heavy recoil from .308 loads can loosen it over time. A drop of medium-strength threadlocker (blue Loctite 243) ensures it stays put through competition and training.
Yes — identical CNC-machined aluminium extensions, just bundled at a better per-unit price for shooters kitting out multiple magazines.
Extended base pads are legal in most 3-Gun divisions including Tactical and Open. However, check your specific match rules for capacity limits, as some divisions cap rifle magazines at 20 or 30 rounds. Always confirm with your match director before competing.
The extension weighs 109 grams — light enough to avoid noticeably altering the magazine's balance in a chest rig, mag pouch, or when inserted in the rifle. The 5 extra rounds of .308 ammunition add more weight than the extension itself.
Still have questions about gear or licensing? Call our Sydney store or send us a message and we’ll help you choose the right setup for your shooting.
The guys were really helpful in sorting out a pistol for me and sending it to my closest shop up here in QLD. I would definitely recommend calling and having a chat or drop in if your local. Thanks again guys.
These are the best projectiles. My lithgow 102 topped with a leupold 6HD 4-24 scope with the custom dial is set for these projectiles. I shoot nothing else. They are accurate enough to out shoot others at the range and I can confidently drop a deer out to 400 odd meters with one shot. Highly recommended projectiles
Outstandingly accurate projectile, very consistent base to ogive dimensions across the 6 boxes I purchased. Less than 0.002” variation across the entire lot. Devastating projectile on soft, thin skin game like fox. Perfectly suited to short 22” barreled 22 Creedmoor with muzzle velocity in the 3400fps range.
Excellent service from the team at Magnum Sports. Product purchased works great! Thanks again!
Great service as always from magnum sports thankyou
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Excellent service from the team at Magnum Sports. Product purchased works great! Thanks again!
Ridgeline alps pack great gear for winter up in Armidale cold nights shooting very warm wellmade
Magpul Picatinny Rails are exceptionally made. Made of Aluminium stock.
I accept this brand unconditionally.
Magpul is another go to brand of mine.
These come in the many various lengths.
So for your next accessory purchase, get down to Magnum Sports your favourite Gun Shop. You’ll be well looked after by Aubrey, Sam, Nelson,Wayne and Buck.
In the Mod1 BRNO these were the most consistent of all the subsonic rounds.
Very efficient, ordered Monday morning and received on Tuesday in regional NSW
