Ejection Port Lowering
original:
blindhogg.com
Retrieved: November 22, 2011
In many of the older Milspec 1911's you might find they dent brass on ejection
or are generally unreliable in the extraction department. I have found that
lowering the Ejection port to .450 from the bottom of the slide can help quite
a bit and here is how I do it. I use a Milling machine while the slide is held
sideways with a Yavapi Slide holder (Fig-1). I usually use a 3/8 carbide four
flute mill bit spinning at 1100 RPM's to lower as in (Fig-2) but on occasion
when looking for a different look I might use a 1/4 inch bit on occasionally.
Next after lowering the bottom of the ejection port to .450 with the milling
machine as measured from the bottom of the slide, I next taper the inside of
the ejection port with a dovetail bit as in (Fig-5)
Return to 1911 Archive