Colt HBAR vs Gieselle Trigger ???

[Beaver Creek]

Just bought a Gieselle match trigger and it wont install in my circa 1993 Colt HBAR. It's a large pin (Mod R6600 I believe). There's a metal block (see pic) beneath the safety that prevents the new trigger from going into place. The block is pinned from 1 side and a small roll pin to the top of the receiver in a fashion that it cannot be removed without drilling it out. I believe this could have been Colt's attempt to comply with the order to prevent M16 sears from installing. Just guessing. Has anybody else encountered this? I think I may have a new match trigger I can't use in this rifle.

 

[JBP55]

PM LP11.

 

[Akajun]

its known as "the block". Basically you need someone with a real big drill press or a milling machine. The pins are hardened and will not be drilled out by anything with any flex. You mess up trying this you will junk the reciever.

IN the early days of ar's in highpower, frank white would charge an extra 45 to put in one of his triggers with that block.

 

[jdessell]

Only Colts.

 

[latech15]

Palmetto State has lowers on sale for $50 right now. It might be easier to just start from scratch with the lower than try to modify the one that you have.

 

[dwr461]

Yes I have a Colt HBar Target Match from 1992. It has the same block. It's a piece of aluminum that was never machined out of the frame. At least that's what I was told anyway... It sits where the parts to make it an automatic weapon would go. It was an attempt to placate the anti-gunners at the time. Does you lower have standard sized pins or the oversized Colt ones? I got lucky. Normal sized pins.

Dave