How to Fix Colt 9mm Carbine Ejection Issues

How to Fix Colt 9mm Carbine Ejection Issues

Gus Norcross, originally trained on National Match rifles and pistols by the National Guard Marksmanship Training Unit, specializes in Garands, M14s and 1911s at his small shop on the coast of Maine. His website is www.angusarms.com. He will be offering gunsmithing tips and tricks on Fridays.


The Colt 9mm carbine is a simple blowback design with no gas system or locking lugs. Theoretically, not much can go wrong. Rather than designing a whole new type of lower receiver, Colt adapted 9mm magazines to a 5.56mm mag well with a roll-pinned adapter. The ejector is a sheet metal prong installed in this adapter. Occasional ejection problems can arise when the ejector becomes bent outward so ejected cases don't impact on the ejector face correctly as they are extracted from the chamber.

This is an easy problem to solve. Grab the ejector with a pair of pliers and adjust it inward toward the bore centerline slightly. A slot in the bottom of the bolt provides clearance for the ejector and if you bend it inward too far it will rub. Check to make sure there is no contact with the bolt by hand cycling the action while observing the bolt face or by viewing through the mag well.


Recommended for You

2nd Amendment

Tell the White House that the 2nd Amendment Was Not Given to the People by Government

Firearms News - July 02, 2019

Please sign and share the petition to get the required 100,000 signatures by July 27.

2nd Amendment

Ontario, Canada Chief Firearms Officer Comments on AR-15 Buying Surge and Gun Licensing

TheGunBlog.ca - July 16, 2019

Ontario Chief Firearms Officer, Dwight Peer, spoke with TheGunBlog.ca about the Canada-wide...

Rifles

Shooting the Soviet 7.62x25mm PPSh-41 Submachine Gun

David M. Fortier - July 11, 2019

The Soviet short sword of World War II was the Pistolet Pulyemet Shpagin-1941 (PPSh-41)...

See More Recommendations

Popular Videos

New Bushnell Prime 1700 and Nitro 1800 Rangefinders

Jake Edson of Bushnell Optics tells OSG's Lynn Burkhead about the brand new Prime 1700 and Nitro 1800 rangefinders.

American Suppressor Association (ASA)

ASA is the unified voice of the suppressor industry and a leading subject matter experts on suppressors and suppressor related advocacy.

New addition to the Browning X-Bolt rifle series

New for 2019 is the Max Long Range model featuring a composite Max stock with fully adjustable comb, spacers for adjusting length of pull, stainless fluted heavy sporter barrel, threaded muzzle brake and extended bolt handle.

See more Popular Videos

Trending Stories

Rifles

Brownells BRN-Proto Retro Rifle

Patrick Sweeney - July 02, 2019

Want the “Holy Grail” of AR-15 rifles? Brownells has made that possible with their BRN-Proto...

Air Guns

AirForce Airguns Condor Ring-Loc Kit Review

Tom Gaylord - May 29, 2019

Sponsored By
Airforce Airguns
2nd Amendment

Firearms News Investigates the NRA: Part 1

Nedd Scott - July 18, 2019

This will be the first of many investigative reports about the NRA by Firearms News.

See More Stories

More How-To

How-To

Troubleshooting The M1 Rifle: Bolt Release Timing

Gus Norcross - February 09, 2015

Give me a Garand, a pocket full of clips and a place to shoot it, and I'm a happy man. The M1...

How-To

Finding The Ideal 5.45x39mm SBR

Vincent Buckles - March 23, 2015

The 5.45x39mm Soviet cartridge was a relative stranger to the mainstream American firearms...

How-To

Data Storage: How to Keep Your Digital Documents Safe

Timothy Yan - June 03, 2014

Digital document storage is convenient, but how do you protect those important files, both...

See More How-To

GET THE MAGAZINE Subscribe & Save

Temporary Price Reduction.

SUBSCRIBE NOW

Give a Gift   |   Subscriber Services

PREVIEW OUR CURRENT ISSUE

GET THE NEWSLETTER Join the List and Never Miss a Thing.

×