WoW what a deal!Funny. My friend just messaged me that someone has one for sale on page 7 of firearmscanada.com for $950.
Friggin dirt bag scammer. $950 was way too good of a deal.
$950 said:![]()
I have a AR-15/M-3 RUGER SR-556 gas piston carbine, 16" chrome lined 1/9 twist barrel, troy rails, troy flip-up battle sights, ergo grip, 6-position M-4 stock, adj. two-stage chrome gas piston, chrome troy piston M-4 bolt, this is the state of the art in AR's, all mil-spec components, new never used. No trades.
Ruger SR-556, I just had to have one. But now I wish I had waited. I have had nothing but problems with it. I have sent it back to the factory for repair twice and still not satisfied with it. From stuck shell cases, not chambering next round and the charging handle dragging across the lower receive causing wear on it. This rifle will not operate with cheaper ammo. I should have spent that $1600 on two other brands of AR15
The issue that has been described to me is the failure to extract a fired round.
This is more accurately described as the extractor removing a section of rim and leaving a fired case stuck in the chamber. It can be caused by:
1. Overgassing the system and speeding up the action of the bolt/carrier assembly. This caused the timing to be off! The bolt unlocks before the case has relaxed within the chamber.
2, A rough chamber or poor chamber geometry which puts extra pressure on the case wall. This will exert more stress on the rim and cause its failure. A sub-part of this is the use of polymer coated ammo. If the gun is hot, and a polymer case is left in the chamber..it welds it self in as the polymer melts between the chamber wall and the case.
3. A mixture of each of the above situations. Since the gas system of the Ruger is “User Serviceable” It creates it’s own issues. If the user does not understand the system, it is common for the operator to keep playing with it.



























