The semi-auto FN SCAR 17S chambered in 7.62x51mm NATO (.308 Win.) was due out this year, but was put on hold. Well it looks like FN-USA has confirmed that the new SCAR 17S will be available in 2010. Below is the official news fron FN-USA.
Released for 2010 is the highly anticipated SCAR 17S now available for civilian purchase. Chambered in 7.62x51mm NATO (308 Win.) and slightly heavier than the SCAR 16S, this unique carbine offers long-range accuracy, exceptional reliability and match winning versatility.
Both SCARs have fully ambidextrous operating controls, a free floating, cold hammer-forged Mil-SPEC barrel with hard-chromed bore; a receiver-integrated MIL-STD 1913 optical rail plus three accessory rails for mounting scopes, electronic sights, lights, or lasers. The side-folding polymer stock is fully adjustable for comb height and has six settings for length of pull. The SCAR also features a tactically advantageous reciprocating charging handle for quick ammo and magazine failure response.
[Source: TFB]
What excellent question