 itschris 
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Joined: Dec 2008  FL, USA
 Posts: 689 Feedback: 100% (2) |
Posted: 8/5/2012 8:59:05 PM
THE IMAGE ABOVE IS A PAID ADVERTISEMENT I was thinking about a Bobro Extended mount or may even the standard. It seems the base is smaller than say a LaRue and can be mounted more forward perhaps negating the need for the extended version. Can anyone say if that's true? Also, is it just absolute overkill since most seem to say the P.E.P.R. mount is a very solid performing option. |
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die-tryin
"MADCOW"
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Posted: 8/5/2012 9:34:17 PM
I have the PEPR, I wanted to go with Bobro but Im using a Wilson Combat BUIS and the scope I was using wouldnt clear. The PEPR was just high enough to allow the clearance plus I decided I didnt need QD for my particular needs, So something to think about if you have rear flip sites.
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Glock031
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Posted: 8/5/2012 10:54:08 PM
[Last Edit: 8/5/2012 10:55:46 PM by Glock031]
Im using the slightly forward Bobro mounts. Have two, one with 1-5x24 and another with 4-12x40. Both are mounted one slot from front end of upper receiver.
SWFA has the newer version with the ring nut access on top. http://swfa.com/SWFA-Precision-Optic-30mm-Mount-P48134.aspx |
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Posted: 8/6/2012 7:13:06 AM
I have Troy BUIS. Are the Wilson's taller when folded? I would definately need the MTAC 1.5-6 to clear the folded rear sight. Does anyone know the clearance with the Bobro?
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Posted: 8/6/2012 9:28:16 AM
Originally Posted By Glock031: Im using the slightly forward Bobro mounts. Have two, one with 1-5x24 and another with 4-12x40. Both are mounted one slot from front end of upper receiver. SWFA has the newer version with the ring nut access on top. http://swfa.com/SWFA-Precision-Optic-30mm-Mount-P48134.aspx I ordered the Bobro Extended Mount from Primary Arms about 3 weeks ago. The picture on the website shows the older version with the nuts on the bottom, but it arrived with the nuts on top. |
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die-tryin
"MADCOW"
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Joined: Mar 2003 FL, USA
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Posted: 8/6/2012 10:07:57 AM
Originally Posted By itschris:
I have Troy BUIS. Are the Wilson's taller when folded? I would definately need the MTAC 1.5-6 to clear the folded rear sight. Does anyone know the clearance with the Bobro? I dont know but I had thought the Wilsons were one of the flattest BUIS on the market, plus it has Elevation and Windage adjustments, reason I went with it. I tried Borbo and American Defense, both made the scope sit to low. I went back to the PEPR and am very happy with it. This is on a long range AR, so I dont need the QD but will always have BUIS on all my scoped rifles. |
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Posted: 8/6/2012 10:12:16 AM
[Last Edit: 8/6/2012 10:17:10 AM by VBC]
I have a standard Bobro quick detach. I don't shoot nose to the charging handle, so my scope eyepiece sits about even with the rear of the receiver. The standard works perfectly and hangs beyond the front of the receiver by just one lug space.
The standard is going to be a little bit stronger/sturdier because less of it is cantilevered (overhanging). However, if you shoot nose to the charging hangle and use a scope with long eye-relief, then the extended or super extended might work better for you. The Brobro mount appears to be standard AR height. Putting the centerline of the scope at the same height as the iron sights. My scope eyepiece clears the Troy flip-up rear sight, but it's a smaller scope (Bushnell 3200 10x40mm) |
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Posted: 8/6/2012 8:33:38 PM
Originally Posted By VBC:
I have a standard Bobro quick detach. I don't shoot nose to the charging handle, so my scope eyepiece sits about even with the rear of the receiver. The standard works perfectly and hangs beyond the front of the receiver by just one lug space. The standard is going to be a little bit stronger/sturdier because less of it is cantilevered (overhanging). However, if you shoot nose to the charging hangle and use a scope with long eye-relief, then the extended or super extended might work better for you. The Brobro mount appears to be standard AR height. Putting the centerline of the scope at the same height as the iron sights. My scope eyepiece clears the Troy flip-up rear sight, but it's a smaller scope (Bushnell 3200 10x40mm) Can you post a pic? I'd like to see that setup. So what you're saying is that you could move the base of the mount forward and still be on the upper receiver, not the top rail of a handguard... correct? |
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Posted: 8/6/2012 8:52:33 PM
Soytenly.
The standard mount has a little bit of overhang, so there is still an inch and a quarter or more you can move the base forward and still have the entire base on the receiver. However, if you shoot nose to charging handle, you'll still have to slide the scope forward in the rings on top of moving the mount forward, unless you have a scope with a really short eye-relief, like 3" One thing about the Bobro is make sure you have a hand holding the scope when you release the lever, or else it might fall off and hit the ground. |
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Posted: 8/7/2012 1:30:28 PM
I find the extended mounts (Larue, Bobro & ADM) offer more flexibility on scope placement. You can alway set the optic as far back or foward in the actual mount, so that gives you some room to work with. Then you can move the mount back or forward on the rail as needed. I have found, particularly with a Larue (which I have the most experience with), that I never run out of room with the extended version. Where as with the standard version, I sometimes wish I had more room to go forward.
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Posted: 8/7/2012 6:26:44 PM
[Last Edit: 8/8/2012 1:10:31 AM by auditude]
Here's a pic to give an idea of the relative positioning of the Bobro mounts and some scopes.
Top one is an MTAC 1.5-6 on A.R.M.S. rings. Next is MTAC 1-4 on Bobro extended Third is Millett TRS on Bobro standard Last is Leatherwood CMR on Trijicon-branded Bobro extended. I think given the length of the MTAC aft of the turrets that the extended gives a little more flexibility. I don't see needing to have the scope further back then I can get it, and I have mine centered in the mount.  |
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Glock031
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Joined: Aug 2010 DE, USA
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Posted: 8/8/2012 3:16:17 AM
Looks like the standard mount gives about 3/4" more ring spacing = 2.950" inside to inside , compared to the 2.150" the extended and slightly extended offers.
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Posted: 8/8/2012 8:18:49 PM
Adding further to my confusion of which one to order, SWFA has their mounts listed as standard, slightly forward, and extended and "low". I looked for the specs on Bobro's site and they don't have such classifications.
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Posted: 8/8/2012 8:23:18 PM
Originally Posted By auditude:
Here's a pic to give an idea of the relative positioning of the Bobro mounts and some scopes. Top one is an MTAC 1.5-6 on A.R.M.S. rings. Next is MTAC 1-4 on Bobro extended Third is Millett TRS on Bobro standard Last is Leatherwood CMR on Trijicon-branded Bobro extended. I think given the length of the MTAC aft of the turrets that the extended gives a little more flexibility. I don't see needing to have the scope further back then I can get it, and I have mine centered in the mount. http://farm8.staticflickr.com/7134/7735930996_09d44053fd.jpg Thanks for posting up that pic. It was helpful. Looking at that, I think I'm probably better off going with the extended mount. I think that'll work better with the 1.5-6x-40 Burris scope I'll be using. I just gotta figure out what this "slightly forward" vs "extended" means on some of the sights that sell the bobro mounts. |
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die-tryin
"MADCOW"
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Joined: Mar 2003 FL, USA
Posts: 29467 Feedback: 100% (137) Link To This Post |
Posted: 8/8/2012 9:20:46 PM
Here is another combo;
Wilson Combat BUIS , PEPR mount and SSS 4-12 x 30mm scope  |
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Posted: 8/12/2012 3:58:28 PM
Originally Posted By ihon:
I find the extended mounts (Larue, Bobro & ADM) offer more flexibility on scope placement. You can alway set the optic as far back or foward in the actual mount, so that gives you some room to work with. Then you can move the mount back or forward on the rail as needed. I have found, particularly with a Larue (which I have the most experience with), that I never run out of room with the extended version. Where as with the standard version, I sometimes wish I had more room to go forward. Exactly this - I won't buy any mounts other than extended these days; could be at some point you change your optic for another with longer eye relief. Extended gives you the max flexibility you can have, and as the poster above here says, its pretty much always the case you wish you had just a little more forward room, never the other way round (especially if you shoot NTTCH). With the Bobro's in particular it is a no-brainer to me - their small footprint means you could always move the mount back on the receiver if required. |
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