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For: Echo 1 MK1 SR556 6.75" Quick Detach Barrel Extension (Black/Flash Hider Included)Product Information:
I got this for my Echo 1 Platinum RIS M4 to cover the tight bore barrel that I installed. It has a great finish to it and the black color matches well the the gun! I had no problems with installing this, just pop in and you are all set. Overall very satisfied with the purchase.
Included flash hider
Hides my inner barrel
Price is alittle steep but good quality
other than that, pretty happy with it.