amt 45 backup trigger mods

Brad Paola · 02-24-2008, 01:02 PM

Sparks,
The comma after the site address in my last message was picked up by the automatic link creation process. The link will not take you there until you delete it and the slash from your browser window.
It would have taken less time to type the gunsmiths name, address and phone number but then you would not be able to read the whole article.
Regards,
Brad

SparxSP · 02-25-2008, 05:24 AM

Got it! Thanks for going to the trouble; I appreciate it.

Take Care,

Salmon45 · 04-17-2011, 04:23 PM

One technique that I use to reduce the compression weight of springs is to mount the spring on a rod that is slightly smaller than the inside diameter of the spring - the spring should roll freely. Using a vertical belt sander with 400 or finer grit, lightly grind the spring by holding the spring at 45 degrees on the traveling belt. By applying light pressure it will roll on the rod and uniformly grind a flat on the outside of the spring.

I have used this techinque on the Garand, Carbine & my AMT Backup 45 - reducing the trigger weight down to a respectible 8 lbs with NO failures-to-fire.

one eye joe · 04-17-2011, 04:55 PM

Welcome to the Forum, Salmon45. That's a neat trick I've never heard of.

one eye joe · 04-17-2011, 04:59 PM

Welcome to the Forum, DAYOOP, SparxSP, and Brad Paola...

04-17-2011, 04:23 PM	#13
Salmon45 Junior Member Join Date: Apr 2011 Location: Hardy, VA Posts: 1	One technique that I use to reduce the compression weight of springs is to mount the spring on a rod that is slightly smaller than the inside diameter of the spring - the spring should roll freely. Using a vertical belt sander with 400 or finer grit, lightly grind the spring by holding the spring at 45 degrees on the traveling belt. By applying light pressure it will roll on the rod and uniformly grind a flat on the outside of the spring. I have used this techinque on the Garand, Carbine & my AMT Backup 45 - reducing the trigger weight down to a respectible 8 lbs with NO failures-to-fire. Last edited by Salmon45; 04-17-2011 at 04:25 PM. Reason: mis-spelling

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02-24-2008, 01:02 PM	#11
Brad Paola Join Date: Feb 2008 Posts: 5	Sparks, The comma after the site address in my last message was picked up by the automatic link creation process. The link will not take you there until you delete it and the slash from your browser window. It would have taken less time to type the gunsmiths name, address and phone number but then you would not be able to read the whole article. Regards, Brad

02-25-2008, 05:24 AM	#12
SparxSP Join Date: Dec 2007 Posts: 8	Got it! Thanks for going to the trouble; I appreciate it. Take Care,

04-17-2011, 04:55 PM	#14
one eye joe Senior Member Join Date: Jun 2009 Posts: 1,080	Welcome to the Forum, Salmon45. That's a neat trick I've never heard of.

04-17-2011, 04:59 PM	#15
one eye joe Senior Member Join Date: Jun 2009 Posts: 1,080	Welcome to the Forum, DAYOOP, SparxSP, and Brad Paola...