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9/22/2017 12:11:25 AM
Posted: 7/15/2005 10:06:22 AM EDT
I NEED a .50! I shot one for the first time last weekend and that was all it took. I'd like to get an "Ultramag .50", a magazine fed upper for AR lowers, I have no problem using the upper on the lower of my Bushy XM15, but only for the near future, I'd like to get a lower dedicated to the BMG. Anyone make an especially beefy lower intened for .50 BMG uppers? Preferably with no mag well etc.
Link Posted: 7/15/2005 12:04:35 PM EDT
I don't know of any AR lower that the 50 upper manufactures recommend specifically for a 50, personally I don't think it matters, but SOCOM has a beefed up lower and DPMS and some others make it out of other metals such as steel or titanium.

Personally I would get a DPMS lower without a mag port, it is a single shot AR lower but it would looke nice on a ultramag 50.
Link Posted: 7/15/2005 9:09:08 PM EDT
[Last Edit: 7/15/2005 9:11:31 PM EDT by 2manytoys]
Essential Arms makes a steel lower which is intended for .50 caliber applications.I have always had excellent results with their aluminum lowers even though they are cast.
Link Posted: 7/15/2005 10:32:43 PM EDT
If you have to get a "beefy" lower for a 50 upper, then the upper was/is a piss poor design. Most of the recoil should be dissapated by the MB and the rest soaked up by the weight of the action/barrel. There should be very little to no stress on the lower reciver. Just get a regular lower and it will work. go here for 50 info www.biggerhammer.net
Link Posted: 7/16/2005 7:08:25 AM EDT
What TaylorWSO said.

But DPMS used to offer a stainless steel lower receiver. It was quite a bit heavier than the aluminum receiver and the extra weight would be appriciated on a .50 I'll bet.
Link Posted: 7/18/2005 3:31:00 AM EDT
The Ultramag has very little recoil (for a .50), far less than a 12 gauge or even my M44 Mosin Nagant, but I don't like the idea of switch the lower on and off the gun all the time and I don't mind spending a few extra bucks to get one dedicated to the .50. I realize it dosen't have to suck up muck more force than if it was shooting .223, but something with some increased weight would be good. I like ronin's idea of a lower without a mag port at all.
Link Posted: 7/18/2005 4:23:58 AM EDT
Quite a few are using the DPMS California lower. It is a standard AR lower but has the mag area removed and recontoured so it can only be a single shot. DPMS also makes a stainless steel lower (natural finish and black) but they are expensive and very hard to get. I have one and it is not needed for anything unless you want more weight. As the others said, if you need a special lower for the .50 BMG it is a really piss-poor designed upper. Watson Arms and Spider Ind. have been using standard lowers on their .50 BMG uppers for years without ill affect.
Link Posted: 8/23/2005 9:14:27 PM EDT
[Last Edit: 8/23/2005 9:36:06 PM EDT by steven1513]

Originally Posted By Big-Bore:
Quite a few are using the DPMS California lower.

But don't take my word for it. The UltraMag50 and ALS manufacturers both suggest using the DPMS California aluminum lower. This is what they do for a living.

Link Posted: 8/24/2005 5:23:34 PM EDT
i just got the 22 inch ultramag and i didn't have any trouble with the trigger changes. But I can't seem to get the "bolt hold open latch" pin out. Does anyone know if it directional? I can't get it to budge using tap methods. Any ideas? I live in california so no gun store will help me --
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