Failure to fire

[survivalshop]

  This is for an AR 15 , but relates to any caliber AR .

 

   Had an AR 15 come to me today because of Failure to fire any brand of ammo & as soon as I looked at the rifle , I could see the Hammer pin was out about an 1/8" or so & the Hammer was cocked to one side . I put the pin in all the way & it seemed to lock in place on the pin keeper . Using a primed empty case , it set the primer off , no problem .

 

  I removed the FCG & the Hammer looked like it was OK in the Pin hole , with the wire in the middle that holds the Pin in place , but didn't want to take the chance of it being broken or weak & having this happen again , so I replaced the FCG . Another primed empty case & it fired off the Primer .  He was Happy because I put in a Spikes Enhanced trigger group w/Pins , I had sitting around .

 

 Just thought I'd pass it along , because I have heard of the Pin Keeper in the Hammer losing its capability to Keep The Pin in place , but have never seen one do it , not that its 100% certain , this one did , but why take the chance , as said. The owner is not the type to disassemble any more than normal cleaning , so I can rule out someone removing & not assembling correctly .

   He took it home & dumped a twenty rounder & all is well .

[98Z5V]

J-Spring.  That's the J-Spring failing.  I've currently got a stock-type trigger with a broken J-Spring.  I'll fix it if I can find the damn spring somewhere.

[MikedaddyH]

Any chance you took a picture of it before you fixed it ?

[98Z5V]

One of these will fix that trigger you took out - let me know if you can find one cheap somewhere, with cheap shipping.  My usualy "quick searches" failed me, so my trigger sits in the parts box.

 

[survivalshop]

Any chance you took a picture of it before you fixed it ?

 

 

 No photo's , I pushed it back in once I straightened out the Hammer , before I even had a thought about it .  As most know , once the Hammer pin comes out of the Receiver hole , spring pressure forces it cocked to one side  & to install the Pin , you have to over come spring pressure to align the Hammer, for the Pin to go in the far side .

  I'm more surprised this "Marine "didn't notice the pin sticking out & I'll bet he was MF'ing himself when he left here . Since he knows I'm Navy <lmao>

  Didn't cost him a dime , except the fuel to come over here .

 

  Thanks, 98 , I couldn't remember the name of that damn spring & was too lazy to look up the name , I figured most would know what i was speaking of . I have heard of people replacing them , but on a std Hammer , bye bye Hammer , not worth it to me .

  I've looked at the spring before & really don't want to even play with any replacement . You can only see a little of that spring & how to get it out would take some doing .  STD MilSpec Hammers are cheap .

Edited March 16, 2015 by survivalshop

[MikedaddyH]

Replacing that J pin it a PITA ,3 hand job, 2 tools and the part placed in position. Hmmmm two Ruger 7.62's have had this happen.

Edited March 16, 2015 by MikedaddyH

[98Z5V]

DPMS has them for $0.40 each, and I had 20 of them in the cart.  $5.00 shipping.  I've just never ordered them because I don't know when they'd show up.  The only other place I've ever seen them is from another parts company (not a manufacturer), and they wanted $2.95 each for them.  Eff that.

 

I might order the DPMS parts just to see how long it takes to get here.