AR15 light firing pin hits

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smithers599
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AR15 light firing pin hits

#1

Post by smithers599 » February 10th, 2019, 1:30 pm

Recently put in an ALG "Combat" trigger. Lately, I get occasional light firing pin hits/failure to fire.
I really, really don't want to send the trigger back if I don't have to. Too much trouble. Is there an easy fix, like does somebody make an extra power trigger spring?



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Lobo2087
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Re: AR15 light firing pin hits

#2

Post by Lobo2087 » February 10th, 2019, 4:33 pm

Alg has a "purple" spring you can order to resolve the light strikes. Its 6-7$

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smithers599
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Re: AR15 light firing pin hits

#3

Post by smithers599 » February 10th, 2019, 7:17 pm

Thank you! Will do, posthaste.


ETA: Ordered. Thanks.

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XJThrottle
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Re: AR15 light firing pin hits

#4

Post by XJThrottle » February 10th, 2019, 8:46 pm

You sure you put the hammer spring back in right?

Only ask because I've done it. My CMMG 22LR conversion wouldn't run for sh... Light strikes. Ran on 556 just fine. DOH, hammer spring in backwards. LOL
Brandon

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smithers599
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Re: AR15 light firing pin hits

#5

Post by smithers599 » February 11th, 2019, 8:30 am

Damn! Looks like I was supposed to order the tan spring, not the purple spring.

https://algdefense.com/alg-defense-purple-spring.html
Description: ALG Defense Purple Hammer Spring, can be installed onto your ACT hammer to provide an approximate pull weight of 4.5 lbs. This spring is perfect for those who are using their rifles for recreational purposes and target shooting. When shooting the ACT with the purple hammer spring and firing military grade ammo or ammo with harder primers, light strikes may occur. If there are light strikes, it is recommended the user switch to the tan hammer spring. The Tan Hammer Spring will give you a pull weight of 6.0 lbs., which meets the minimum required pull weight of 5.5 lbs. in the M4 Carbine specifications.
Oh well, I'll try the purple when it arrives, and see what happens....

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Re: AR15 light firing pin hits

#6

Post by 338lapua » February 12th, 2019, 9:31 pm

If you are using 5.56 with FC, LC or WCC head stamps it could be the harder primers.

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