Description
The CMC Power Mag delivers the heavy-duty performance you expect from Chip McCormick's lineup. Built entirely from stainless steel with laser welding throughout, this magazine is engineered to run reliably regardless of conditions. The all-steel follower design minimizes contact points with the magazine tube, which means it performs flawlessly even in dirty environments where regular cleaning might not happen immediately. That design also doubles as the spring mechanism itself, allowing for the largest possible rocket wire spring coils compared to other 1911 8-round magazines.
Power and Precision Engineering
The CMC Power Mag features 11 extra-powerful coils of aerospace-grade rocket wire spring material. More spring coils mean more consistent pressure on your rounds as they feed, which improves reliability across any ammunition type you run. Die-controlled tolerances are held to plus or minus .001 inches, which is over 75% tighter than military specification standards. This level of precision translates to better fit, more predictable feeding, and longer service life.
Built to Last
The removable polymer base pad makes field cleaning simple without disassembling the entire magazine. Numbered witness holes on both sides let you see your round count at a glance. The smooth finish makes insertion and removal smooth and easy. This magazine has a three-year warranty covering any material or manufacturing defects, and CMC has backed the Power line since 1999 with a track record of zero failures due to spring fatigue, cracked feed lips, broken welds, or follower wear.
What to Expect
Designed for full-size 1911 Government models, this 8-round magazine feeds 45 ACP reliably whether you're running ball ammunition, semi-wadcutters, or hollow points. It's ideal if you want the standard grip length for concealment without sacrificing capacity.
Key Specifications
- Caliber: .45 ACP
- Capacity: 8 rounds
- Magazine Type: Full-Size 1911 Government
- Material: Laser-welded stainless steel body with all-steel follower
- Spring: 11-coil aerospace-grade rocket wire, high tensile
- Base Pad: Removable polymer
- Fit: All full-size 1911 Government and Commander models
- Witness Holes: Numbered on both sides for round count
- Die-Controlled Tolerances: +/- .001 inches (75% tighter than Mil-Spec)
- Manufacturer: CMC Products (Chip McCormick Custom)
- Manufacturer Part Number: M-PM-45FS8
- UPC: 705263141315
- Warranty: 3-year limited warranty
What’s Included
- 1x CMC Power Mag 1911 .45 ACP 8-round magazine
Frequently Asked Questions
Will this Power Mag work in my full-size 1911?
Yes, this is designed for all full-size 1911 Government and Commander models in .45 ACP. It feeds reliably in Colts, Springfields, Tisas, Kimbers, and other standard pattern 1911s. The wide compatibility comes from CMC's strict manufacturing tolerances.
What makes the all-steel follower better than other designs?
The all-steel follower minimizes the bearing surface contact with the magazine tube, which lets it function in dirty environments where dirt and debris might jam other followers. It also serves as the spring mechanism, allowing CMC to use larger diameter rocket wire coils for more consistent feeding pressure than competing magazines.
Can I use standard .45 ACP ammunition in this magazine?
Absolutely. The Power Mag is designed to feed ball ammunition, semi-wadcutters, and hollow points reliably. The strong spring pressure and precise follower design make it compatible with whatever .45 ACP you run.
How often do I need to clean and maintain this magazine?
While regular cleaning is good practice, the all-steel follower and laser-welded construction of the Power Mag are specifically engineered to keep functioning reliably even when cleaning is delayed or happens in the field. The removable base pad makes field cleaning straightforward when you need it.






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