Sniper1 said:
The DPMS seems like a decent low cost alternative to the LMT model. I suspect loosening screws is a common issue with anything you might bolt to an AR if you don't loctite the screws and torque to the specificed torque value.
What are the best BUIS??
- Thread starter Shrapnel
- Start date
The DPMS seems like a decent low cost alternative to the LMT model. I suspect loosening screws is a common issue with anything you might bolt to an AR if you don't loctite the screws and torque to the specificed torque value.
- Location
- Ontario defense force (ODF HQ)
I run with a S.I.R. rail so the only one that would fit was a 40L, But I have been happy with it.
Some of the BIS's I've played around with over the years.
Failing grades to:
DPMS A2 rear (flimsy - screw are too skinny to have any real strenght)
Diemaco A1 rear (ploymer too fragile)
IMHO for most others things it is personal preference.
BTW the ARMS#40 has huge problems in the Afghan and Iraq dust (gumming the spring etc) - hence a lot of units have gone to Troy and abandoned the spring up requirment.
Failing grades to:
DPMS A2 rear (flimsy - screw are too skinny to have any real strenght)
Diemaco A1 rear (ploymer too fragile)
IMHO for most others things it is personal preference.
BTW the ARMS#40 has huge problems in the Afghan and Iraq dust (gumming the spring etc) - hence a lot of units have gone to Troy and abandoned the spring up requirment.
I used a LMT A2 on my carbine in Afghan - however I found the attachment nut to make it awkard in accessing the charging handle. There are a number of ways to fix it -- the simpliest being repalcing the thumbscrew with a small flush to the screw nut. (making it a tool required install/removal)
I had a Larue A1 BIS for a very short period, at the time I got it, a buddy down south convinced me that unless you are in the Navy no-one else needs a fixed BIS and they obscure enough vision to make them a deteriment for anyone who is not banging of a ships hull getting coated in salt water.
Currently of the avialable BIS's the TROY is my favourite -- but I am waiting patiently for the KAC BISII.
I had a Larue A1 BIS for a very short period, at the time I got it, a buddy down south convinced me that unless you are in the Navy no-one else needs a fixed BIS and they obscure enough vision to make them a deteriment for anyone who is not banging of a ships hull getting coated in salt water.
Currently of the avialable BIS's the TROY is my favourite -- but I am waiting patiently for the KAC BISII.
Just a bit offtopic from talking AR BUIS's, but I saw an interesting failure on an AK at a Tac Rifle match in Custer, WA. The rifle had an Aimpoint mounted on a 'rail' that included a Backup sight built into the rail. The rail system seemed to mount right at the original iron sight mount.
The Aimpoint became loose after the first stage and it looked like it was the mount that was loose...so the owner took the Aimpoint off to tighten the allen screw that went through the centre of the mount into the top of the receiver. It was discovered that the mount itself had cracked from the mount screw right to the edge of the mount, which meant it could not be tightened. His immediate thought was to leave the Aimpoint off the rifle, but he quickly realized that his backup sight, being part of the mount, was also useless as it was flopping around with the mount.
The moral of the story is to mount a Back Up Iron Sight on a different mount than the optics.
(The guy was a good sport, and finished the match basically shooting the AK by instinct...he had recently returned from a tour in Iraq with the US Army, btw...)
The Aimpoint became loose after the first stage and it looked like it was the mount that was loose...so the owner took the Aimpoint off to tighten the allen screw that went through the centre of the mount into the top of the receiver. It was discovered that the mount itself had cracked from the mount screw right to the edge of the mount, which meant it could not be tightened. His immediate thought was to leave the Aimpoint off the rifle, but he quickly realized that his backup sight, being part of the mount, was also useless as it was flopping around with the mount.
The moral of the story is to mount a Back Up Iron Sight on a different mount than the optics.
(The guy was a good sport, and finished the match basically shooting the AK by instinct...he had recently returned from a tour in Iraq with the US Army, btw...)
I have no experience with the Larue Aimpoint mount versions - but given the rest of Larues products I have I'd say they where the bomb...
If one is spending $500 + for an aimpoint you may as well get a mount that will retain zero.
Kevin's list of aprroved Aimpoint Mounts
LARUE
KAC
PRI
WILCOX
ARMS #22M68
GG&G
the above have several different favour but all seem to be "bulletproof"
The US issue Aimpoint mount with "picatinny clicker" torque knob I am mixed on.
B&T - no, as they seem to be made of a cheap metal
Aimpoint - no for the ring rail that comes with the Comp M's
If one is spending $500 + for an aimpoint you may as well get a mount that will retain zero.
Kevin's list of aprroved Aimpoint Mounts
LARUE
KAC
PRI
WILCOX
ARMS #22M68
GG&G
the above have several different favour but all seem to be "bulletproof"
The US issue Aimpoint mount with "picatinny clicker" torque knob I am mixed on.
B&T - no, as they seem to be made of a cheap metal
Aimpoint - no for the ring rail that comes with the Comp M's
KevinB said:
Sounds like a reasonable list. Have you taken a look at the new Promag mount? It looks alot like the GG&G at a more affordable price and is made of forged Al. Alot of arfcommers seem to be flocking to it as a good quality (non-gucci) mount that doesn't break the bank. Reportedly very solid and robust and holds zero. Cowitnesses in bottom 1/3 of reticle. I'm thinking of trying one on an Aimpoint "clone" for range use just to see how it performs.
Ususally I despise anything made by Promag (ie, their magazines) but this mount seems to be proving my preconceptions wrong from the reviews I've read. Ever seen one in person?
Here's a pic of what GG&G is selling now. Looks like their latest version has some lightening milling on the cantelever extension and uses a more streamlined battery cap. Otherwise they look very similar.
One HUGE difference is price. Promag retails most places around $60 US while the GG&G is a whopping $175 US. Guess you can cut costs when you don;t have to do any R&D...
One HUGE difference is price. Promag retails most places around $60 US while the GG&G is a whopping $175 US. Guess you can cut costs when you don;t have to do any R&D...
KevinB said:Okay so they took GG&G's old battery cap version and copied it...
I'd be interested in possibly getting one - know where they are sold?
I'm getting mine from CSgunworks. Look here:
http://ar15.com/forums/topic.html?b=7&f=129&t=310497
Interestingly, the "old" battery cap version that Promag is copying is a good copy of the real aimpoint battery cover, complete with the button tab to install the rubber cap retainer. It's intended to be a replacement part for the aimpoint isself if you lose the other cap when switching batteries in the field.
I find it odd that GG&G stopped producing it that way and changed over to the smooth design. I wonder if maybe they changed it at Aimpoint's request?
Anyhow, I still can't figure how Promag can produce the GG&G design for 1/3 the price and not get their fingers slapped.
I find it odd that GG&G stopped producing it that way and changed over to the smooth design. I wonder if maybe they changed it at Aimpoint's request?
Anyhow, I still can't figure how Promag can produce the GG&G design for 1/3 the price and not get their fingers slapped.
