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3/16/2026 12:45:58 PM EDT
I have a side charging bolt carrier that is AR15 cut, not FA profile. I know that somebody used to make an adapter to bring an AR carrier to FA profile. Does anybody have one of these that I can buy or know where I can find one? I found a site listing what I need, but the order button just went to a discontinued web site. Thanks.
3/16/2026 1:09:56 PM EDT
[#1]
The only modification I have ever seen is to weld and machine in a piece.  What are you wanting to make it a FA profile for?
"Some people have issues. Sounds like he signed up for an entire subscription." ~Brohawk
Proud member of Team Ranstad.
Arfcom St Jude Mafia 3 years
Arfcom callsign: trenchfoot
3/16/2026 2:17:39 PM EDT
[Last Edit: TGWLDR][Edited] [#2]
Quote History
Originally Posted By d16man:
The only modification I have ever seen is to weld and machine in a piece.  What are you wanting to make it a FA profile for?
View Quote

There were bolt up mod kits as well as the weld/ machine options for Auto-Sear Trip.

Similar to the current rimfire options available these days.

Auto-Sear Trip:









Honestly,  the OP would be better off buying a full profile carrier and moving forward,  IMO.

EDIT. I missed the side charger notation, my bad.
3/16/2026 2:21:15 PM EDT
[#3]
Bushmaster used to sell them, but they were pretty much junk.



I find my life is more enjoyable since I've shunned politics.. y'all should try it.
3/16/2026 4:40:30 PM EDT
[#4]
That's exactly what I'm looking for. I have a very nice and expensive side charging upper that I would like to use for FRT but the carrier is semi only cut.
3/16/2026 4:45:08 PM EDT
[#5]
What about just getting a new side charging bcg?
"Some people have issues. Sounds like he signed up for an entire subscription." ~Brohawk
Proud member of Team Ranstad.
Arfcom St Jude Mafia 3 years
Arfcom callsign: trenchfoot
3/16/2026 5:37:19 PM EDT
[#6]
I thought a simple adapter would be much cheaper and less hassle than trying to find a compatrible BCG
3/16/2026 5:56:12 PM EDT
[Last Edit: d16man][Edited] [#7]
This isn't the EE.  This is a tech area. Thanks. ~D16man
3/16/2026 5:57:43 PM EDT
[Last Edit: d16man][Edited] [#8]
This isn't the EE.  This is a tech area. Thanks. ~D16man
3/16/2026 10:39:08 PM EDT
[#9]
Unfortunately, the "semi auto" carriers were not all cut back the same distance.  Some were just barely cut back to not trip the sear, others milled all the way back, and then piles of others were cut back, to a multitude of different dimensions.  So there's not going to be one adapter that will work with all those different semi auto carriers, bringing them back to M16 spec.

Tony
3/24/2026 3:56:13 PM EDT
[#10]
I have a JP Enterprise Side charger that I don't want to weld on. The units in the above pics look like you can install and tighten to any length. I've googled it and can't find the ones pictured.
4/2/2026 3:38:11 AM EDT
[#11]
Quote History
Originally Posted By TonyRumore:
Unfortunately, the "semi auto" carriers were not all cut back the same distance.  Some were just barely cut back to not trip the sear, others milled all the way back, and then piles of others were cut back, to a multitude of different dimensions.  So there's not going to be one adapter that will work with all those different semi auto carriers, bringing them back to M16 spec.

Tony
View Quote



This...

Manufacturers all machine AR15 carriers back to different lengths. Getting one long enough to workwith all and maching back to match the top cut of the carrier will cost as much as a new carrier will.

I assume you want this for an FRT?

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