Below is my analysis of the SCAR posted last summer on another site. In summary, it is a fine rifle, but it is not worth $1000 more than an AR.
Initial impressions
+ I don't know what I was thinking when I first saw it at the NRA show 2 years ago...this rifle is trim
+ Feels lighter than my ARs...maybe it is a center of gravity thing
+ Light and handy
+ Controls are all familiar to any AR shooter - most are ambidexterous...it was stupid, however, for SOCOM to specify the same stupid ping pong paddle bolt release of the AR though. Ambi selector is nice but needs to be longer. Since replaced with a Magpul lever.
+ Reciprocating charge handle doesn't bother me but its placement is poor...hand hits my optics all the time. Have since replaced with an angled charging handle.
+ The adjustable cheek piece is nice...really well placed. Feels flimsy but so not sure how it would stand up to long term use.
+ Folding stock is a huge plus...seems well made but I think the early ones had a cracking issue at the hinge
+ Trigger is similar to a stock AR but less creep and crisp let off...I'd say 6 lbs or so
+ BUIS sights are well made and positive
+ Field stripping is much different than an AR but very straightforward
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I snuck out of work to see if the SCAR was really more controllable than an AR as I've heard the internet commandos say. I haven't really been able to wring the SCAR out as right after I got it, I've been travelling internationally for work a lot. The one time I got to shoot it, it certainly didn't feel that much different than my AR.
As you can see, I'm no high-speed-low-drag operator...just a regular guy shooter. In fact, from the size of my jeans, you can see I'm fairly high drag. Also, for Michigan, it is HOT today...90 deg and 90% humidity. I know that doesn't seem like much to you Southern boys but remember, we break out the shorts and t-shirts here when it gets above 45 degrees.
Take a look at the videos. I haven't edited them to get a back to back comparison. The basic test was...start loaded round in chamber, 3 in mag, safety on. Fire 2 hammer pairs, reload, 2 hammer pairs. Here's what I learned:
[li]The SCAR didn't "feel" more controllable...in fact, just the opposite. Not sure if that is familiarity or just the big bolt carrier slamming back and forth[/li]
[li]The AR felt easier to fire hammer pairs but I think that is driven mostly by the trigger...I've got a RRA 2 stage match trigger in it[/li]
[li]The SCAR actually kept a much tighter group. I was very surprised by this so I repeatered the test several times...sure enough, my shots were much more tightly clustered. At this range (7 yards) I think that is nothing to do with accuracy. Probably more driven by the PWS comp on the SCAR and the piston system[/li]
[li]The unofficial time on my stopwatch is pretty equal between the SCAR and AR...but the SCAR seems slower [/li]
[li]Which do I like best? Don't know yet...I'm not selling my ARs anytime soon[/li]
SCAR video
AR video
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You also might want to consider the Robinson Arms XCR-L. I just got one and am quite impressed.
+ Superior ergonomics to an AR or a SCAR (I own multiple ARs and a SCAR)
+ Rugged construction
+ I have the lightweight barrel and the handling qualities are excellent. Some say the XCR is too heavy...not an issue with the LW barrel
+ Superior charging handle (FAL-like) and bolt release placement
+ Simple AK long stroke piston and 3 lug bolt
+ Folding stock is the cat's meow
+ Shooting characteristics...very smooth, low recoil. Less than the SCAR even though the SCAR has a PWS brake