Mec-Gar Ruger Mark III 22/45 10-Round Magazine
The Mec-Gar Ruger Mark III 22/45 Magazine is a 10-round .22 LR replacement magazine built for Ruger Mark III and 22/45 rimfire pistols. Its heat-treated carbon steel body wears a blued anti-friction finish for corrosion resistance and smooth cycling, while a steel spring and polymer follower keep feeding reliable round after round. A side loading button speeds up reloads and the oversized 22/45-style baseplate locks in for a snug, secure fit. Built by Mec-Gar, the world's most trusted OEM magazine maker, it's an ideal spare for range days, plinking, and competition.
In stock
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- SKU
- MGMK345LRB
$21.79
Description
Features
- 10-Round .22 LR Capacity — Holds a full 10 rounds of .22 Long Rifle for extended range sessions and reduced reloading.
- Ruger Mark III 22/45 Fitment — Engineered to drop in and lock up tight in the Ruger Mark III and 22/45 rimfire pistols.
- Heat-Treated Carbon Steel Body — Hardened carbon steel tube delivers superior strength and long-term durability under hard use.
- Blued Anti-Friction Finish — A blued protective coating resists corrosion and helps the magazine cycle smoothly in the magwell.
- Steel Spring — Music-wire steel spring maintains consistent feeding pressure from the first round to the last.
- Polymer Follower — Self-lubricating polymer follower glides cleanly up the body for reliable feeding of rimfire ammunition.
- Side Loading Button — A side-mounted loading button takes the strain off your thumb and speeds up topping off the magazine.
- Oversized Polymer Baseplate — The 22/45-style extended baseplate provides a snug seat in the frame and a positive surface for inserting and stripping the mag.
- Witness Slot — A long viewing slot down the body lets you confirm your remaining round count at a glance.
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Customer Reviews
Top customer reviews
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Perfect fit for my Mark IIIDropped right in with no issues at all. Feeds every round smooth, no jams after about 300 rounds so far. Honestly cant tell the diffrence between this and the factory Ruger mag. If you need extra mags for the range this is the way to go.
Great price compared to OEM
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great value magSo my Ruger MKIII 22/45 was having constant failure-to-feed issues with the factory mag that came in the box. Every 3rd or 4th round would nose-dive into the feed ramp. Drove me nuts. A buddy at the range suggested trying Mec-Gar mags since he'd had good luck with them in his 1911s... figured at under 25 bucks it was worth a shot. Glad I did. 400 rounds of Winchester White Box and Federal American Eagle later, not a single FTF. ZERO. I was honestly shocked. The spring tension feels stronger than my factory mag and the follower seems to present the rounds at a slightly better angle. Only thing I'll mention the first couple range sessions the mag was pretty tight to insert and release. Broke in around the 200 round mark and now it seats and drops fine. For anyone on the fence about aftermarket vs the Ruger OEM mags, give these a try first. Way cheaper and in my case they actually fixed the problems the factory mag was causing.
Crazy good value
Tight fit out of the box, needs break-in period
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