Re: FN SPR
(Woops, I thought you were asking about the A3G, not the A1. My response is in regards to the A3G)
1/2 MOA guarantee instead of 1 MOA like the other SPR's. Bedded with Marine-tex (GAP used to bed them, not sure if they still do) as well as a titanium skeletonized rail. Overall it's a higher quality weapon that gets more attention when it's put together. The "10,000 round" barrel life is due to chrome lined barrels, which all of the SPR's have. Honestly I think the A3G is on par with a lot of the custom rifles. It carries a phenomenal accuracy guarantee and is built on a stellar action. It's bedded into a McMillan stock, and with the chrome lined barrel it will last a long time before needing to be rebarreled. The only arguably weak point is the lack of AICS bottom metal.