Have any of you tried doing this? I’d imagine that pinning the fsb would be a hard job since alignment of the sight would be affected by this.
your better of not trying it unless your a competent gunsmith/machinist.
i believe DD sells barrels with them already pinned.
There’s a jig made by a member, IIRC, for this specific job. It align aligns the fsb and keeps it in place while you drill and ream for taper pins.
Why not just get a barrel with a pinned fsb, or a full upper even?
I have an 11.5 BCM barrel and an FSB sitting around and I keep meaning to get the same thing done, so I’ve been looking around. I’d never try to do this myself.
Adco will do it for $90 if you supply the FSB, $130 if they supply it (you can buy an F-marked FSB at BCM for $30). They will also smooth off the front ramp flashing and re-parkerize for an additional $30 and/or grind off the useless bayonet lug (and swivel ears, I hope) for $15 . So I’m contemplating $135 to get my FSB smoothed, de-lugged, and taper-pinned. I’m hoping I can send my delta ring/barrel nut and handguard ring for them to slip on before installing the FSB.
A DD barrel with the FSB already installed would have been substantially cheaper, but in that case my choices were either a 10.3 inch or a 12.5, and I wanted an 11.5 in barrel, based on my experience with other SBR barrel configurations and my very positive experience with BCM short barrels.
/
thanks for the replies guys.
as to why i got it this way, i live in a country where ar parts are kinda hard to get and you take what is available. The more readily available brands are bushmaster, dpms and generic barrels. A lot of good gunsmiths are here though so I’ll just bring it to them. The farthest I plan on shooting will be probably 300 meters so i don’t really need an ultra accurate setup, just a reliable one. I thought that this was an impossible job and I’d have to resort to getting a low profile gas block and a rail rather than a fixed front sight and plastic hand guards which i originally planned.
It will be accurate enough. But, if the FSB is not installed correctly then you will have issues of it short-stroking due to the gas port being obstructed.
I agree.