Hi I'm new to the forum. I have been lurking for a little while as a scar 17s and a five seven owner. My local gun store has a used gen 2 tri rail that they offered to me for 2k. We broke the gun down and it has the grey trigger pack with black hammer. The trigger pack shows little wear from bullets feeding. The OD green casing shows a little wear on the grip from handling, and there is two little tiny specs of rust in the muzzle break. The gun does not come with original packaging but does come with a 50 rnd mag and a sling. I'm curious to see from a collectible stand point if the gun is worth it and would you still fire it with out losing value.