AR15.com regulars: GG&G flip-up vs. DPMS rear sight?

G

Glock-A-Roo

New member
I would post this to AR15.com forums but they're still down.

I've got a flat-top Bushmaster and I will eventually put an Aimpoint Comp sight on it. Between the GG&G flip-up and the DPMS detachable rear sights, which one has generally coexisted better w/ the Aimpoint (or similar optics)? I want to be able to use the irons right through the Aimpoint if it fails. It seems that the GG&G would obscure the field of view less when using the Aimpoint, but the DPMS looks like a more robust assembly.

In general, any shared experience of using the Aimpoint with backup irons on a flattop would be appreciated. Thanks in advance.

BTW: I tried the Yankee Hill detachable rear sight assembly. Well made, but the design forces you to mount it about 1" further forward than the GG&G/DPMS/carry handle A2 sights. Puts the rear aperature even further from your eye. I hate giving up sight radius due to a poor design.

revision: Just realized I've been saying "GG&G" through all this post. I meant to say "A.R.M.S. #40" flip up sight. I've been reading too many catalogs.
 
I was with you until you changed it to the A.R.M.S sight. I have the GG&G with an aimpoint on my Colt M4 upper and could comment. Sorry, don't have the A.R.M.S stuff.

Here is a pic of my sighting setup on my M4 upper:

View
 
I use the Knights 300 meter flip up on my Colt 6920 behind the Aimpoint. I've used the A.R.M.S. sight and find it satisfactory also. I found neither sight distracting when using the Aimpoint. I've got no experience with the DPMS.

Jeff
 
I use the DPMS sight with my Comp M-XD with no difficulty on my Bushmaster flattop. I chose the fixed DPMS sight because I didn't want to waste time flipping up the backup rear sight if the Aimpoint went dead during "action".

Be aware that the DPMS sight does not have the 8/3 or 6/3 markings on the elevation drum. This is an advantage in some situations if you're using the gun on a shorty -- I believe the Yankee Hill sight uses the 8/3 drum and that's no good for me, because my Bushmaster is a 16" carbine and I don't use much 62 grain ammo. In any case, DPMS says you can install the 6/3 drum if you wish.

Also, you'll want to use tools or Loctitle to affix your DPMS sight to your flattop receiver. Finger tightening (at least for me) didn't do the trick.

I have not used the GG&G flip-up, sorry can't help you there.

Justin
 
I have the GG&G A2 flip up rear sight mounted on my M4gery behind an Aimpoint Comp M XD and it has worked very well for me for quite some time now.
Don't know anything about the ARMS or the DPMS, but I do like the GG&G better than the Knights.
 
The standard DPMS detachable rear sight DOES have the 8/3 elevation wheel. On mine, it proved impossible to lower it two clicks, so as to get Chuck Santose' "Improved Battlesight Zero". It had another problem, though, and a more important one, in that the aperture toggle (the actual flip sight itself) was unstable when the smaller aperture was used; it would wiggle, rocking fore and aft, on its hinge. When the )0-2 (larger) aperture was up, everything was rock steady, but I prefer the smaller aperture.
DPMS also makes a flip-up rear sight, but it's fairly flimsy in its "elevation" adjustment, kinda like Ruger's Mini-14 Ranch and 10/22 rear sights; you slide a little piece up or down, then tighten a tension screw. No thanks.
I got the GG&G flip-up rear, and am VERY pleaased with it. Not only could you easily mount a red-dot (or ANY forward-mounted type of sight) with it, I was able to mount my long high power Sightron Varmint scope right OVER it, using the high mount from American Spirit Arms, since, in the folded-down position, the GG&G unit sits only 0.75" above the flat top rail. It's a very well-made sight, very stable, and stays up or down, whichever way you put it. Best.
 
I have an ARMS #40 behind a Holosight on my flattop. Before the ARMS, I had the DPMS site and really hated it. Since it didn't fold down like the ARMS does, it gets in the way of sighting through the Holosight. When I got the ARMS #40, problem was solved; had a clear view through the Holosight, with the ability to deploy iron sights by flipping the lever on the ARMS. The ARMS is about as well made as a folding sight can be...seems very rugged.
 
jhunnetaz: getting through now. Before, I was going through a firewall & proxy server. Now I'm on a plainjane dial-up. Thanks for the info. AR15.com performance seem slow, though.
 
fyi

Glock-A-Roo,..

Glad you made it there. btw,... after you log in, then click on the "discussion forum",... then from that page, on the upper right hand corner, there are active links to other forums...

AK47 - ak47 info/forums
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Industry forum - Manufacturer forum

it took me a couple of logging in, to figure out where everything is,... also have fun with those smiley animations when posting.
 
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