Here's all the info I've been able to dig up on the new products. Let me know if y'all have more info and I'll add it.
From top to bottom
SR-25 ECR P/N 30289 MSRP $5,618.75
SR-25 ECC P/N 30313 MSRP $5,743.75 (upgraded EMC)
...Ambi bolt release and safety
...16" Dimpled barrel (barrel is .7 lb lighter than EC)
...Carbon cutter bolt carrier
...New URX 3.1 rail
...762QDC Flash Hider
...Enhanced buffer and tube assembly
...45 degree offset BUIS
SR-25 EC P/N 30365 MSRP $4,368.75
...Looks like non ambi bolt rel and safety
...Non dimpled non chrome lined barrel (.7lb heavier than ECC barrel)
SR-25 ER (Not Shown) P/N 30359 MSRP $4,125.00
SR-15E3 IWS Mod1 Carbine (16" bbl) P/N 30351 MSRP $2,207.50
...new URX 3.1 rail
SR-15E3 SBR CQB 11.5" (KAC Marked) P/N 30022 MSRP $2,500.00
SR-15E3 SBR Carbine 14.5" Ball Millded (Dimpled) Barrel (KAC Marked) P/N 30354 MSRP $2,750.00
SR-15E3 Light Precision Rifle 18" Barrel (Collapsible stock) P/N 30280 MSRP $2,457.50
...Krieger Stainless Steel 1:7 match barrel

From top to bottom
SR-25 ECR P/N 30289 MSRP $5,618.75
SR-25 ECC P/N 30313 MSRP $5,743.75 (upgraded EMC)
...Ambi bolt release and safety
...16" Dimpled barrel (barrel is .7 lb lighter than EC)
...Carbon cutter bolt carrier
...New URX 3.1 rail
...762QDC Flash Hider
...Enhanced buffer and tube assembly
...45 degree offset BUIS
SR-25 EC P/N 30365 MSRP $4,368.75
...Looks like non ambi bolt rel and safety
...Non dimpled non chrome lined barrel (.7lb heavier than ECC barrel)
SR-25 ER (Not Shown) P/N 30359 MSRP $4,125.00
SR-15E3 IWS Mod1 Carbine (16" bbl) P/N 30351 MSRP $2,207.50
...new URX 3.1 rail
SR-15E3 SBR CQB 11.5" (KAC Marked) P/N 30022 MSRP $2,500.00
SR-15E3 SBR Carbine 14.5" Ball Millded (Dimpled) Barrel (KAC Marked) P/N 30354 MSRP $2,750.00
SR-15E3 Light Precision Rifle 18" Barrel (Collapsible stock) P/N 30280 MSRP $2,457.50
...Krieger Stainless Steel 1:7 match barrel