This is a very neat thread & appreciate the pics of the fine builds folks have put their sweat, tears & money into.  Now that I have a couple of AR's specific to needs the thought has turned to a CAR-15 in the "just because" realm given the bookshelves in the house filled with SF history. Having located the usual "internet shootouts" of flashhiders - including one by itself - but not found it compared, one of the questions I have is:

Has anyone with one of these ever taken it out at late dusk or evening & can give a comparison relative to the average A2 device?  Don't need lab data, just would appreciate someone's feedback of how successful a device this was, having never fired one.
Thanks very much.

Anyone know the actual barrel length and twist of these?

COCRXM177E2 PRODUCT DETAILS

FAMILY:AR-15 Rifle Series

MODEL:XM177E2 AR-15

TYPE:Rifle

ACTION:Semi-Auto

FINISH:Matte Black

STOCK/FRAME:Synthetic Stock

WEIGHT:6.5 lbs.

CALIBER/GAUGE:223 Rem | 5.56 NATO

CAPACITY:20 + 1

# OF MAGS:1

MAGAZINE DESC:20 rd. USGI Magazine

BARREL:16.1"

OVERALL LENGTH:31"

RATE-OF-TWIST:1-in-12

SIGHTS:A1 Fixed Front & Rear Sight

SAFETY:Safety Selector Switch

ADDL INFO:XM177E2 Reissue

ADDL INFO:Non-NFA XM177 Flash Suppressor

ADDL INFO:Vinyl Coated Alum. Buttstock

Colt M16's and XM177's whose serial numbers end in 666 are cool (and truly evil black rifles). I think this one is late 1970's (the best time ever). Sorry, not to hijack the thread.....carry on....

I am guessing it's photo-shopped?  It's whited out on the box

All the Retro Colts I have seen have a serial prefix of: 905xxxV

That is beautiful.  Very nice pick up.