If you’re going to build it yourself I would go for a Sionics 11.5 barrel. The have the right size gas port, the right profile, and outstanding accuracy. For that matter you could even get a complete upper from them.
If you’re going to build it yourself I would go for a Sionics 11.5 barrel. The have the right size gas port, the right profile, and outstanding accuracy. For that matter you could even get a complete upper from them.
Colt Commando (6933). Out-shoots my PSA upper, even after I gas-nazied the PSA into submission.
https://www.armsunlimited.com/Colt-1...p/le6933ck.htm
https://www.gandrtactical.com/Colt-L...Kit_p_258.html
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If you called Sionics they might do a fsp build for you with the reduced gas port barrel. Otherwise, if you were worried about gas port size Black River could help you out.
I just put one together about a month ago. Had a 6920 upper and just swapped to the barrel for a Colt 11.5” FBI. Put a MI Combat rail on it which is pretty nice. Solid, low profile, and light. These barrels can be found for around $250 with shaved FSPs, FSPs, and no GB. Buyer beware that these may not have a .069 GP they are reportedly have. Mine was .073 so I just got a BRT tube at .069...need to install. .073 eject xm193 a little hard but handles .223 nicely.
Overall the barrel is accurate and now I have an all Colt upper. This will go on the 6920 lower once it’s SBRd. Riding a pistol lower now.
Not sure I would buy rather than build an upper.
"A flute without holes, is not a flute. A donut without a hole, is a Danish." - Ty Webb
Black River Tactical
BRT OPTIMUM Hammer Forged Chrome Lined Barrels - 11.5", 12.5", 14.5", 16"
BRT EZTUNE Preset Gas Tubes - PISTOL, CAR, MID, RIFLE
BRT Bolt Carrier Groups M4A1, M16 CHROME
BRT Covert Comps 5.56, 6X, 7.62
Because of your specific requirements, you are going to be limited to only a few solid choices. That's not a bad thing, but by opening up to FF rails, you will have dozens of really good options. Something to think about.
I do like the Colt 6933 upper that was suggested. It comes with a BCG, CH, and rear flip. Kind of a no-brainer to me.
I went with rails on my pistol at first. Damn thing nearly burned my fingers after a few mags (I've never been the type to wear shooting gloves). Since you can't have a VFG on a pistol and I don't really care for AFG's I sort of gravitated back to old school handguards and I've been perfectly happy.
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