The ACR (which is now manufactured Bushmaster for the civil market and only by Remington for law enforcement and military sales) has a higher rate of fire and a higher muzzle velocity than the FNH-SCAR. In addition, the ACR has a larger standard magazine size (30 rounds, compared to the SCAR's 20). It is also slightly lighter than the SCAR. I would lean toward the ACR, but both assault rifles are very competent weapons.
Note: I used the standard models of both weapons for comparison, I did not take into account any of the variant specifics.
No
Just the fact the the FN-F2000's ejection system was specially designed to be ambidextrous without any special mods is a big +1 in my book. Both (standard, non-variant) weapons fire 5.56mm ammo, the norm for assault rifles, but only the FN-SCAR can fire larger 7.62mm NATO rounds. Then again, the FN-SCAR uses small 20-round magazines, while F2000 rifles provide 10 more rounds. I give my edge to the F2000.
The FN SCAR is a special operations combat assault weapon manufactured by the Belgium firearms manufacturer FN Herstal. It is a modular combat rifle chambered in either 5.56 NATO or 7.62 NATO calibers.
Yes, it was created in Belgium by FN-Herstal, a firearms corporation, for SOCOM (United States Spec Ops Command).
Either one is fine.
The FN SCAR is now available but you will be hard pressed to find one available even at the $2,300 retail price. I think the official date was 12/15/2008.
No such nomenclature. You're probably thinking of the Mk 13 Mod 0, which is a 40mm grenade launcher designed by Fabrique Nationale for use with the FN SCAR. The launcher itself is marketed as the GL1, and was designed for use with the FN-2000. Mk 13 Mod 0 is a USSOCOM nomenclature for a variant of the GL1, designed for use with the FN SCAR.
With the Picatinny rail mounted variant, yes. But the M320 would more likely be used on the SCAR series rifles.
Remington did not make the A5. From 1906 to 1947, Remington produced the Model 11, which was their version of the A5. However, the barrels were not made by FN (Fabrique National, Herstal, Belgium) Please check the markings on your gun and repost your question. If it is a Remington, Remington Customer Service MAY be able to help- but Remington guns are usually dated by a 3 LETTER code on the left side of the barrel- and if that is not the original barrel, all bets are off.
No, at least not in any official capacity. The M4A1 SOPMOD is still standard fare for the Navy SEALS, and will likely be replaced by the FN SCAR-L. The interest initially generated by the HK416 by the US military seems to have died down quite a bit, and it's not likely to see any widespread usage in the US military in the face of new weapons such as the SCAR and Remington ACR becoming available, and even as American companies are coming up with gas piston upper designs which are compatible with the M16/M4 lower receivers (although the Taiwanese were the first to make them, essentially doing in 1974 what H&K received so much undue praise for doing with the HK416).
There are several: AR4 LR308, Armalite AR-10 A2, Remington R-25, POF-USA P-415, Barrett REC-7, Knight SR-25, Stag Arms M-7, DPMS .308 Mark 12, Fulton Armory FAR 308, FNH FNAR 308, FN SCAR 17S, LaRue Tactical PredetAR 7.62,and the FN/FAL Umbel 7.62 Battle rifle.
The standard service rifle of the US Army Rangers is the M4A1 with the SOPMOD kit. Some units have used the FN SCAR-L in the past, but the order for SCAR-Ls to equip the whole of SOCOM was cancelled in 2010.