This is our 1911 Magazine Base Pad Drilling Fixture, The MAGJIG™.
This simple, PRECISION drilling fixture will help drill perfectly aligned and spaced
holes .531" apart on center, for our magazine base pads.
It comes complete with the proper size #43 COBALT
It is a QUALITY, PRECISION TOOL suitable for
use on all 1911 style magazines constructed after the original Mil Spec design.
It is not designed for, and will not work with ANY of the Wilson Type 47 Combat Magazines.
It is configured with the same dimensions for base pads found on magazines sold by Colt, Para Ordnance, Randall, Auto
Ordnance, Detonics, Metalform, Chip McCormick, Ed Brown, Mitchell, Les Baer , Springfield Armory, Kimber, Smith & Wesson, Dillon
Precision, Brownell's, Mec-gar and others.
Any Gunsmith, serious shooter or competitor will appreciate it's quality.
It can be used for fitting any 1911 magazine base pad requiring holes that are spaced .531" on center, using a 4-40
It has been CNC Machined to our own design specifications
from solid T6
stock and engraved with the CDP Logo.
INSTRUCTIONS FOR USE
View or download the INSTRUCTION SHEET
in Adobe Acrobat PDF
format for more detailed information.
Custom Defensive Products
Magazine Pad Drilling Fixture Instructions
- Disassemble the magazine by removing the follower and spring.
- Place the magazine in the jig with the front edge facing the tensioning screw.
- Turn the tension screw until it just makes contact with the nose of the floor plate.
Once contact is made, tighten the screw 1/4 turn or ONLY until the magazine is firmly in place.
DO NOT OVERTIGHTEN the tension screw.
- We recommend placing the magazine and jig in a bench vise (as shown) for
drilling of the base plate. Use soft jaws or a leather or rubber pad against the magazine body if available.
- Place the jig on the top edge of the vise jaws. Light, contact is all that is needed.
DO NOT OVER-TIGHTEN THE VISE ON THE MAGAZINE. The jig will securely hold the magazine, resting
in the jaws of the vise.
- Using an electric hand drill and the #43 drill bit provided, drill the holes in the magazine
using the holes in the fixture as a guide.
NOTE: Many early blued and military magazine base plates are HARDENED and may require an
additional step to help the drill bit start cutting. Nickel or Hard Chrome plated magazines will also be difficult to drill.
We suggest marking the places for the holes with a center punch and use cutting oil or light machine oil on the tip of the
drill bit. DO NOT use WD40 or synthetic oils.
- Use a medium to high motor speed with a constant downward pressure, while drilling. The jig will help keep the
drill bit from flexing.
- Attach the base pads using # 4-40 Stainless Steel thread cutting screws, or tap the holes with a 4-40 tap.
- Thoroughly clean the inside of the magazine body to remove any remaining oils or metal shavings before