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80 Posts
Discussion Starter · #1 ·

Have any of you tried it?

I have a spare Knight’s lower (SR-15 Mod 2) that needs a new upper. I only have two hang ups over buying a MR556A1 upper:

1. No chrome lined barrel

2. No adjustable gas block

Despite this, I just got my tax stamp for an OSS 762 suppressor, so I figured a MR556 + OSS can might work well together.

TFB liked the new MR556A1 upper: TFB Review: Heckler & Koch MR556A1

I still want an adjustable gas block and chrome lined barrel though, lol

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