CMC Products MMG45FSBP 1911 Government 45 ACP 8rd Stainless Steel Magazine with Black Base Pad

If you run a 1911 in .45 ACP and demand magazines that match the precision of your pistol, the CMC Products Match Grade 1911 Government magazine delivers the kind of engineering you won't find in standard-issue alternatives. This 8-round stainless steel magazine is built to tolerances held at ±.001 inch—more than 75% tighter than typical military specs—which translates to reliable feeding, smooth seating, and the kind of consistency serious shooters expect from a Match Grade component.

CMC didn't cut corners on the internals either. The follower and feed lip geometry are refined for dependable rounds-downrange performance, and the magazine uses aerospace-grade wire for the spring—the kind of material you'd find in precision equipment, not budget surplus. A laser-welded base plate bonds the tube permanently, eliminating the rattles and eventual failures of older pinned designs. The stainless steel construction resists corrosion, and the smooth finish lets the magazine slide in and out of the well without snagging.

Numbered viewing holes down the body let you count rounds at a glance without unloading—small detail, huge convenience during range sessions or when you're running multiple mags and need to know which ones are topped off. The black base pad is included, along with screws, ready to run straight out of the box.

Key Features

• Match Grade tolerances (±.001 inch) ensure tight, consistent feeding
• Aerospace-grade spring wire for long-term tension and reliability
• Laser-welded base plate for permanent durability—no pinned construction failures
• Refined follower and feed lip geometry optimized for .45 ACP feeding
• Stainless steel tube resists corrosion in any environment
• Numbered viewing holes for quick round-count verification
• Smooth finish for easy insertion and removal from the magazine well
• Black base pad and screws included

Specifications

Brand	Chip McCormick Custom (CMC Products)
Caliber	.45 ACP
Capacity	8 rounds
Platform	1911 Government
Material	Stainless Steel
Base Pad	Black (included)
Base Plate Design	Laser-welded
Tolerance	±.001 inch

Frequently Asked Questions

Will this magazine work in my standard 1911 Government?

Yes. This is a traditional USGI-style fixed base magazine designed for the 1911 Government platform in .45 ACP. It fits standard 1911 Government pistols.

What's included in the box?

The magazine comes with the black base pad and screws already included, so you're ready to install and use out of the box.

How does the laser-welded base plate compare to pinned designs?

A laser-welded base plate is permanently bonded to the tube, eliminating the loosening and eventual failure common in older pinned or riveted designs. This construction is more durable for long-term use.

Why are the tolerances tighter on a Match Grade magazine?

Match Grade tolerances (±.001 inch) control dimensions far more precisely than standard military specs. This tighter control means more consistent feeding, better seating in the well, and less variability between individual magazines—critical if you're running multiple mags and expect identical performance from each one.