Bobro 34mm Scope Mount Review

Bobro 34mm Cantilevered Scope Mount

I have been viewing Bobro throughout the previous four years. I have watched the company’s growth by simply word of mouth, with practically no promotion; they don’t even have a SHOT show corner. From a couple of clients to a branded mounts OEM of Trijicon. They did this while having a site that, as far as anyone is concerned, is usually not updated with their products. As it were, the products sold themselves. Request has been such that the less regular mounts have dependably been done and finished with stock and the bipod, well, simply disregard discovering the bipod. This popularity may have kept the site from being upgraded yet it doesn’t appear to have ceased product change or new outlines.

That brings me to how I stopped by this mount. I asked. I was doing the 1-8x degree standoff and was heading up a bit short on the mount end. To run a decent speed testing segment, I need all optics to be in a mount at the same time with the goal that they can be immediately swapped. Regardless of tunneling from all my pals, and getting off basically all that I had, I was still short one 34mm mount for the Bushnell SMRS. I had to write to Andrew who at that time had been creating a cantilevered 34mm variation and was searching for some presentation for it. Within a week, the turned one out and handed it over to me. This is one of the pros of doing business with factory that produce the products you sell in the US that you drive to each morning.


The mount came to me with a solitary sided guideline sheet, the oddest minimal 1/2? by 1/2? hex torque and a little vial of Loctite (which I never used). With an instruction that reads – “This is to keep you from manhandling the cap nuts and breaking your scope”. Aside from a fast clarification of how to use the lever framework, this is the thing that the short guidelines concentrated on. Okay, I’m summarizing. The guideline sheet was not composed by me and they were more pleasant about saying things, yet I can think about what they were speculation having had comparative contemplations myself.

The greatest single impression I had was that this thing is immense and overwhelming. My 34mm 1-8x scope review that the disadvantage of 34mm outlines is that the added size has a tendency to add weight to the optic and the scope mount. This mount is an incredible representation of this. The 30mm Bobro cantilevered mount I was using four years back was 6.9oz, which was precisely the weight of the contending Larue. This one weighed in at 12.3oz, effortlessly the heaviest mount I have ever utilized and near the weight of ultra-high 34mm steel Badger Ordnance rings. I will say that the mount in this survey is a model and that the generation adaptations weigh marginally less. I comprehend that this is a dubious thing to scrutinize since numerous 34mm degrees are substantial and numerous rifles kick with extraordinary force. Any specialist will realizes that, in other to hold the same load as a pillar upheld on both finishes, a cantilever should not be twice as solid yet rather altogether more than that. This applies to cantilevered mounts also. It is the expense of getting the additional two inches of eye help that the cantilever permits. Numerous extension creators appear to have received the prospect that more drawn out is constantly better with respect to eye easing so this is progressively fundamental.

Bobro is dark anodizing of the most astounding quality, like that of the ARC scope mount. The machining is additionally fantastic and clean, with no tooling imprints remaining. Between these two creators there is a significant distinction in technique and objective that ought to be tended to. The middle area of the American Rifle Company mount incorporated the ring bottoms in what was an extremely bound together framework went for wiping out all latches that would never be used by the end client to include firmness and accuracy. Bobro plans when all is said in done, are particular in configuration. The rings are discrete from the spine and in a few outlines, however not this one, the spine is likewise separate from the base. The thought of this particular development is to lower cost and expand the choices accessible by making parts exchangeable. Any rings can be combined with any spine and, in the more regular single lever models, with any base. This is the means by which Ed had the capacity invert the lever in his 30mm mount. He switched the bearing of the base part and also that of the forward indexing difficulty opening haul. In this 34mm variation, the base and spine are one piece subsequent to insufficient vertical room existed to make a joint and included firmness was required in the outline to suit overwhelming degrees and vicious rifles.


Andrew is in advance with the cases for his locking framework. They are unmistakably recorded on the site and are follows:

  1. Must be compatible with any 1913 Specification Rail, to include systems that are out of specification (within reason) and this includes Weaver rails.
  2. Must be completely user adjustable, tool free. It needs to be 100% self-contained and mate securely to any rail without the user having to tailor the pressure/engagement position.
  3. Must lock with enough pressure to positively attach any device or optical instrument to a rail without movement, static or dynamic forces notwithstanding.
  4. The rail must not experience any deformation due to user error. This must include synthetic (plastic/polymer/composite) rail systems.
  5. Auto Index capability. The device must also index parallel to the bore. The unit must always repeat the forward shift (recoil forces direction of influence) not only to maximize zero repeatability, but to take this step of installation out of the user’s initial mounting sequence. Index must be redundant.
  6. Unit must not shoot loose due to improper mounting or a mechanical bottoming out.
  7. The system must incorporate a safety that prevents the lever from being accidentally opened. The safety must be able to be manipulated in conjunction with the lever rotation, so that only one hand is required to open it.
  8. The unit will utilize constant force to ensure required pressure in all conditions. The force must be substantial to prevent any shift forward/aft left/right.
  9. The pressure must be applied in a linear direction centered in the main body to prevent cocking of the mount.
  10. It must be easy to manipulate by gloved or fatigued hands.
  11. It must be extremely robust, and withstand shock and impact to the system housing.

Many of these claims such as 2, 7, and 9 are more design specifications than testable claims. It is obvious from the pictures that the design meets these specifications. I will boil the others down to three claims, flatly ignoring claim 11 because I’m not about to go at it with a hammer or drag it behind my truck. Here is my Readers Digest version of the testable Bobro claims:

  1. Will fit on any in-spec rail without adjustment and not mar.
  2. Will return to, and hold, zero.
  3. Can be attached and detached with a single gloved hand.



Keeping in mind the end goal to test the fit any in-spec rail without damaging claim and gloved hand claim, I appended and disconnected the mount from a mixture of rails: aluminum,  polymer and steel. A solitary, gloved hand is not an issue. The levers have a lot of procurement. Essentially, no in-spec rail displayed any size troublesomely. On the out of spec rails I attempted, two issues came up. In the first place, a few rails have cross spaces that are not the right width. This has been an issue before for me as numerous rings have cross opening engagement that additionally requires in-spec rails. Bobro has a little slack in this office as a result of its forward indexing cross opening carry. This drag has a spring stacked arm on the back that compels the mount to dependably list forward. Still, I did have a rail close by that was simply too far beneath spec on cross opening thickness in this division for the mount to fit on without a little record chip away at the out of spec rail.

On altogether oversized rails, I accept the Bobro will most likely not fit. There is some space for an oversized rail, however not all that much. As to an undersized rail, I have an altogether undersized rail for testing and the Bobro grasped it bounty tight. In conclusion, no scratch was perceived on any rail, even the polymer embellishment rail I attempted. A percentage of the contending items won’t mount on all the distinctive, and out of spec, rails I tried on and some will just mount with a decent arrangement of torque alteration in the middle.

Presently we get to the meat of the testing: Will it hold zero and will it come back to zero? All through the course of my testing I utilized both the first Bushnell SMRS 1-8.5x degree and a U.s. Optics ER-25 degree. This mount does characteristic enough separation between the turrets to fit a T-buddy seat segment agreeably. The optics was torqued to 20 inch/lbs. The test focuses beneath were let go with the high controlled USO scope. All were shot from a Patriot Arms (APA) .308 rifle and two separate burdens were utilized for the diverse gatherings as stamped on the target. One of these was a crisp stacking of the same Nosler 168 based load that I utilized for the American Rifle Company audit. The other was another Sierra 168 SMK based load that I had high trusts for, however tragically turned out to be a poor burden. Gatherings were terminated from a seat at 100 yards with front and back sack in around 70 degrees with variable winds to around 4 mph.

Most organizations publicizing a QD item that “comes back to zero” don’t point out the amount of progress is normal and fair and, thusly, add up to aimless explanations. Some, quite GDI, do (for their situation, .1 MOA in lab and <.2 in field testing). That level of repeatability would be adequate for presumably any use short of benchrest, while the 1 MOA guarantee that I have heard others casually bandy about for different producers, while it may suit the AR swarm, would not please most accuracy rifle clients.

Bobro’s configuration, with its exactly balanced spring strain and tight cross opening engagement, tries to minimize any progressions to these variables. With a specific end goal to test the come back to zero capacities of the ARC mount, I terminated three gatherings with ammo at 100 yards. I began with the SMK based ammunition that I had trusts for and shot two five shot gatherings getting off and remounting the extension in the middle. I next shot a third five shot gathering getting off and remounting every shot. These gatherings were short of what I expected, so I changed to the ammunition that was a known amount and did three more. This time I shot the first gathering and for both the second and third gatherings I got off and remounted every shot. The last gathering was just four rounds as I was out of the Nosler ammunition around then.

I utilized the on target program. This system computed a mixture of detail for each one gathering. Of most investment are the level and vertical balance from point facts. By contrasting each one gathering balances with those of alternate gatherings, the uprooting from the focal point of one gathering to an alternate could be figured and from that, the normal relocation computed.


Bobro is one of my favorite producer mounts that are quick-release. I recommend their single lever 30mm mounts to AR clients. It is the best, cantilevered, brisk discharge framework made. It is precisely what most AR clients are searching for – or would be whether they were eager to use more than $50. Today’s 34mm mount is something half of the cantilevered speedy discharge mounts normal to AR clients and the exactness optic uni-mounts that a lot of people jolt firearm clients have. Bobro combines the levers to handle overwhelming withdrawing burdens, includes 34mm rings, and solidifies the spine to base crossroads by making it one piece, all while keeping the cantilevered nature. I am satisfied that Bobro likewise suits the vast seat segment of USO T-Pal degrees in this configuration.

Indeed thus, not everything about the Bobro drop forward 34mm mount is perfect. At around $325, it is well up into the top value section for mounts, yet it fails to offer a couple of the additional items getting to be more regular in premium accuracy optics uni-mounts. A lot of room exists at the back of the base for an air pocket level, however none is available. That huge, wide, level space at the once again of the base simply looks so covetous of a little air pocket level. With everything taken into account, it is a strong configuration in spite of the fact that a couple of modifications could make it considerably more appealing.


Leave a Reply


Mounting Solutions Plus ©2016 All Rights Reserved (305) 253-8393,
10655 S.W. 185 Terrace Miami FL 33157