Check yourself if you own some of these rifles.

https://www.sigsauer.com/suppo...ifle-safety-warning/

SIG SAUER, Inc. has determined that a limited number of rifles in the SIG716 DMR®, SIG516® Carbon Fiber and SIGM400® Predator models are subject to a Safety Warning and Recall Notice. Some models were built with a two-stage SIG SAUER trigger that may have an improperly heat-treated hammer. Over time, this could result in a trigger malfunction creating a significant safety hazard. SIG SAUER is issuing a mandatory recall to replace the hammer and trigger assembly in these specific rifles. This recall does not affect any military or law enforcement rifles or any SIG MCX®/SIG MPX® products.

SIG SAUER will correct any of the affected firearms at no cost to the customer.

That's weird ... the FCG in my 1st gen DMR was a Gisselle(?SP) but it was something like 6 pounds, it was the only change I've made, I put in a 3.5 SSAE ... don't think I'll be sending mine in!