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12/19/2011 3:26:22 PM EDT
[Last Edit: Duffy][Edited]
We'll keep updating this as more manufacturers make ready their 45 degree, and 45/90 compatible receivers.

The difference between a strictly 45 degree selector compatible receiver, and a 45/90 compatible receiver is the FIRE/pictogram position.  A 45 degree only receiver's FIRE/pictogram engraving is close to 60 degrees, which allows the 45 degree's position indicator to point at it when the selector is set on FIRE.  A 45/90 compatible receiver's FIRE/pictogram engraving is situated at 68 degrees, thereby allowing both the 45 and 90 degree selector to both point to its general direction when the selector is switched to FIRE.

45 degree compatible receiver:

Accurate Armory, 45 degree only receiver (45/90 compatible receiver may be coming)




45/90 compatible receiver:

AR15.com billet receiver



AXTS, A-DAC-F (forged) and AX556 (fully ambidextrous, billet) and AX762 (coming soon) receiver

A-DAC-F


AX556


AX762


Aero Precision Ambidextrous Lower Receiver, Gen 2 link


Photos courtesy of AR15.com, Military Moron, Aero Precision, and Rainier Arms

Battle Arms Development
http://battlearmsdevelopment.com
For LE/MIL, and firefighter discount, please email me at:
[email protected]
5/24/2012 3:38:12 PM EDT
[Last Edit: Duffy][Edited] [#1]
Rainier Arms now has a 45/90 compatible receivers as well

Rainier Arms receiver





And Legion Firearms Legion Link

Battle Arms Development
Improvidus, Apto quod Victum

http://battlearmsdevelopment.com
For LE/MIL, and firefighter discount, please email me at:
[email protected]
6/28/2012 8:34:17 AM EDT
[#2]
War Sport now joined the list of 45/90 compatible receivers

War Sport site













Battle Arms Development
Improvidus, Apto quod Victum

http://battlearmsdevelopment.com
For LE/MIL, and firefighter discount, please email me at:
[email protected]
10/17/2013 11:47:47 AM EDT
[#3]
Aero Precision just announced its ambidextrous lower receiver, gen 2  link



Battle Arms Development
Improvidus, Apto quod Victum

http://battlearmsdevelopment.com
For LE/MIL, and firefighter discount, please email me at:
[email protected]
11/27/2013 12:01:51 PM EDT
[#4]
One more from Aero Precision without the PDQ Linkie

Battle Arms Development
Improvidus, Apto quod Victum

http://battlearmsdevelopment.com
For LE/MIL, and firefighter discount, please email me at:
[email protected]
12/4/2013 11:27:22 AM EDT
[Last Edit: Duffy][Edited] [#5]
Joe Bob Outfitter's Spartan Billet receiver



Linkie
Battle Arms Development
Improvidus, Apto quod Victum

http://battlearmsdevelopment.com
For LE/MIL, and firefighter discount, please email me at:
[email protected]
1/19/2014 5:06:17 PM EDT
[#6]
Midwest Industries billet receiver

" />

Link to MI receiver
Battle Arms Development
Improvidus, Apto quod Victum

http://battlearmsdevelopment.com
For LE/MIL, and firefighter discount, please email me at:
[email protected]
1/30/2014 4:11:41 PM EDT
[Last Edit: Duffy][Edited] [#7]
Cross Machine Tool (CMT Tactical)   CMT





Battle Arms Development
Improvidus, Apto quod Victum

http://battlearmsdevelopment.com
For LE/MIL, and firefighter discount, please email me at:
[email protected]
1/30/2014 9:58:54 PM EDT
[#8]
Quote History
Originally Posted By Duffy:
Joe Bob Outfitter's Spartan Billet receiver

<a href="http://s75.photobucket.com/user/Duffypoo/media/JB-SPARTAN15-21_zpsae8e3bf5.jpg.html" target="_blank">http://i75.photobucket.com/albums/i314/Duffypoo/JB-SPARTAN15-21_zpsae8e3bf5.jpg</a>

Linkie
View Quote

That lower, the Ferrara fire arms lower and the working mans army are all the exact same lower with different roll marks but they are all marked with the short throw markings.
I need a couple of the old style clamps for troy folding sights.
4/19/2014 9:47:48 AM EDT
[#9]
Yep, we know the manufacturer, they're in the same city as as
Battle Arms Development
Improvidus, Apto quod Victum

http://battlearmsdevelopment.com
For LE/MIL, and firefighter discount, please email me at:
[email protected]
4/19/2014 9:48:22 AM EDT
[#10]
San Tan Tactical

Battle Arms Development
Improvidus, Apto quod Victum

http://battlearmsdevelopment.com
For LE/MIL, and firefighter discount, please email me at:
[email protected]
6/10/2014 10:00:20 PM EDT
[#11]
Rainier Arms billet 308 (the first BAD-ASS-ST and BAD-CASS-ST compatible .308 receiver)



Linkie
Battle Arms Development
Improvidus, Apto quod Victum

http://battlearmsdevelopment.com
For LE/MIL, and firefighter discount, please email me at:
[email protected]
7/23/2014 2:39:38 PM EDT
[#12]
Aero Precision is claiming their M5 .308 lower will work with these as well.

http://aeroprecisionusa.com/lower-receivers/m5-stripped-lower-receiver.html
7/24/2014 8:18:50 AM EDT
[#13]
Thank you
Battle Arms Development
Improvidus, Apto quod Victum

http://battlearmsdevelopment.com
For LE/MIL, and firefighter discount, please email me at:
[email protected]
11/18/2014 9:15:15 AM EDT
[#14]
Will the safty work with spartan billet lower from joe bobs?
11/18/2014 1:55:28 PM EDT
[#15]
Yes.  The short throw safety should work on the Spartan billet lower from Joe Bob.  From their website I see they have the relief cut to allow the BAD-ASS-ST safety pin block to pass through.
President, Battle Arms Development, Inc.
www.BattleArmsDevelopment.com

11/18/2014 1:59:20 PM EDT
[#16]
Our now have our own forged lower receiver, the BAD-15.  



It is BAD-ASS-ST and BAD-CASS-SA-ST "SHORT THROW" Safety Compatible:



 
 
 
President, Battle Arms Development, Inc.
www.BattleArmsDevelopment.com

10/10/2015 7:37:46 PM EDT
[#17]
New Frontier Armory also has the notch to work with a SS.  I put a BAD SS safety on my Spartan 9 Glock lower, and the SS is the coolest freaking thing I've seen in awhile.  Great product, I'll be using them exclusively on my builds going forward.
11/9/2015 2:06:32 AM EDT
[#18]

Quote History
Originally Posted By TheDevilYouLove:


New Frontier Armory also has the notch to work with a SS.  I put a BAD SS safety on my Spartan 9 Glock lower, and the SS is the coolest freaking thing I've seen in awhile.  Great product, I'll be using them exclusively on my builds going forward.
View Quote


You're right, NFA also have compatible lowers.  There are many more out there.  We will compile a list soon.



 
President, Battle Arms Development, Inc.
www.BattleArmsDevelopment.com

12/2/2015 10:48:16 AM EDT
[Last Edit: Bigjack7440][Edited] [#19]
What about the billet Mega Arms lower? I have the Billet Non AMBI Mega Arms lower that's compatable with forged upper recivers in my case I have the new BCM BFH KMR upper and the Mega Arm billet lower . It fits like a glove with the BCM uppers . As I said Mega Arms makes lowers for Forged and billet uppers . The part number I have is GTR-3S http://www.megaarms.com/ar-15/lower-receivers/billet-lowers/gtr-3s/

Note: make sure when ordering the AMBI lower in billet you put AMBI behind your GTR -3S . There the same part number but if you don't say AMBI you'll get the none AMBI . I orderd mine threw a FFL dealer and I ask for AMBI but he didn't know to put AMBI after the GTR-3S and well I'll live . Only real difference is I don't have AMBI bolt catch and I had to use a roll pin ( drive pin) to hold the bolt catch vs when buying the AMBI lower it comes with a threaded Allen head small pin/bolt and it comes with a extended plunger for AMBI bolt catch assembly .

Q: So is the MEGA ARMS  GTR-3S ON THE LIST for the BAD CASS ST AMBI safety ???
Thanks and hope this helps future Mega Arms and BAD customers figure out what they need

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