Does anyone know how far forward I would need to "shim" the NT4's QD flash hider to pin on a Colt 14.5" LE6921 barrel to make it a legal 16"?
Also what would you recommend I use to shim it forward? A couple peel washers? I don't know if you could do two crush washers... Maybe a combo of the two? Thoughts?
Thanks in advance!
ETA: NM, I just found my old thread where I basically asked this same question. Looks like I need to have my gunsmith make a custom shim to bring it forward enough. I do plan on putting the silencer on this pinned flash hider too.
I never plan on taking off the flash hider once it's on, so if I can make it 16"+ in length, I won't have to SBR my lower. I think it's kind of silly to SBR a 14.5" barrel that has a flash hider on it that can be made to 16"+ length. Especially if you never plan on taking the flash hider off.
KAC QDSS-NT4 Pinning Question
- KevinB
- Silent But Deadly
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I get 15 7/8" with our M4QD or the Triple Tap with no shims - I used a Colt M4 barrel and our M4 SR16E3 barrel for measurements, and putting a .22cal cleaning rod down the barrel to the bolt face.
Kevin S. Boland
Director of Military Operations
Knight's Armament Company
701 Columbia Blvd.
Titusville, Fl 32780
Ph 321-607-9956
Cell 407-451-4544
Fax 321-383-2143
http://www.knightarmco.com
Director of Military Operations
Knight's Armament Company
701 Columbia Blvd.
Titusville, Fl 32780
Ph 321-607-9956
Cell 407-451-4544
Fax 321-383-2143
http://www.knightarmco.com
Alright thanks.
You know I'm going to have to wait on the form 4 anyway, so I guess I should just nut up and SBR the lower at the same time.
I'm probably going to shoot the NT4 mostly on my RR (M16A1 with 6933 11.5" upper), but I wanted to also be able to throw it on my LE6921 upper which I am planning on putting on an extra LE6920 lower. So like I said, might as well SBR the 6920 lower I guess... Just seems kind of silly, but I guess I could put my 6933 upper on it then as well if I really wanted to.
Sorry I'm thinking outloud now...
Thanks for the replies!
You know I'm going to have to wait on the form 4 anyway, so I guess I should just nut up and SBR the lower at the same time.
I'm probably going to shoot the NT4 mostly on my RR (M16A1 with 6933 11.5" upper), but I wanted to also be able to throw it on my LE6921 upper which I am planning on putting on an extra LE6920 lower. So like I said, might as well SBR the 6920 lower I guess... Just seems kind of silly, but I guess I could put my 6933 upper on it then as well if I really wanted to.
Sorry I'm thinking outloud now...
Thanks for the replies!
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- Silent But Deadly
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