B-Square 17021

[hvactech]

http://img172.imageshack.us/img172/8107/picture004khx.jpg

http://img156.imageshack.us/img156/8334/picture002z.jpg

Edit : ...posted in the wrong gate ( was thinking " discussion , but it's really for reviews ).

Since it's here I'll try..

Highs : Adjustment solved the " droop " issue. Looks nice.

Lows : Clamping base is delicate.

Conclusion : 45 bucks is better spent at a " Strip " Club...( see photo's and note hardware due to failed threads ).

Edit ...for my application. This is intended for a raised rail to work as intended...the adjustment is fantastic and has a locking set screw for that. They could spell that out better in thier product description however.

 

   

 

 

[Progun]

Hey Mike, that looks like a B-Square 17021? If so, you shouldn't have to "cinch down" the side clamp screws nearly with as much torque as you might any other type of base mount as the scope mount will not shift rearward even if the screws are only barely snug. The doo hicky pin that butts up against the front of the rail will arrest movement. The same "don't over tighten" warning applies to the Leapers UTG droop compensating mounts that are made for Diana rails.Thomas aka TJK gave us a heads up on stripping those screws from over tightening a while back when the Leapers mount first hit the shelves. Lesson learned.Those nuts ought to help keep the screw in place.

[hvactech]

Thanks Progun ,

I'm sure that this mount is great on a gun with a " raised " rail ( and the design intent ).  This gun just has " grooves "  , so yeah , my problem is not with the mount as much as it is the gun. - M

Edit : I just need to make an " insane " offer on a BKL mount or put this gun on the shelf.

Update : I just purchased a BKL mount...I hope it is this dramatic...

perhaps  this : http://www.youtube.com/watch?v=HNwigoEfDjo

versus this : http://www.youtube.com/watch?v=BRVs69oLkgs

Read the description on the B square website of this model .

[Progun]

Oh I see what you mean. If you need strong side clamping on a grooves only receiver and you want to address droop issues too, you could use a Beeman 5039 or B-square 17101.They are adjustable for elevation and windage and you can clamp 'em down tight to the grooves. Yeah Mike, that 17021 just ain't made for a gun without a raised rail.You can't likely get it clamped on tight enough that it wouldn't move anyway and if you use the mounts brass pin elevation adjuster for a stop pin, you wil likely dig out of the hole in short order.It's kinda soft.

[hvactech]

• Attaches to any 11mm dovetail
• Easy installation

[tjk]

Over-tightenning is a risk with products made and assembled from sub-standard materials. I've come to the conclusion that it's best to procure better quality allen heads from a hadware store and keep the originals for back-up use. Then again, the mounts are often made of poor quality materials and retapping them a size bigger helps as well ( a bigger and deeper threading will give you a bit more torqueing power). Another point that you made really hit home too,....how makers describe their products!!!! When I recieved my UTG Diana comp mount, it clearly tates on the packaging that the clamping plate is fully reversable,....guess what,....it wasn't?!?!? Dave's write though, if you've got the money, you'd be better off getting a Beeman/Sports Match 5039 ajdustable mount for your rifle. They're kinda expensive, but well worth the cost in the long run. I've had one on my Crosman SP and it's never given me any problems. Just a bit tricky setting it up,....but once you get passed that, it's there for good!!!!Good Luck, tjk

[hvactech]

Ok , the item in the O.P. has been forgotten ( and the 50 bucks spent on it ). 9 revisions of self moderation...movin on.

I've come up with a few BKL-260 mounts ( perhaps from different " vintage ). My favorite is a zero compensation with a dull finish and the BKL insignia on one side. This mount just seems " better " in some way than the shiney ones...perception maybe ? I plan on using the flat mount on my son's Beeman Rs-2 ( chinese ) and one of the 7 droop mounts on my RWS 92.

The BKL 260 misses the " 426 Hemi " of scope mounts due to the 2 screw scope clamp ( and the " fixed " height of the mount itself ). The lower dovetail groove clamp is close enough for me.

The BKL site states that they will be back on - line soon. I've read something on here that references " learning from the past ". I sure will...BKL mounts for me from this point on. Used , new , stripped....still better than anything else ( except for the UTG late model RWS mounts ) on the market now...10 times over. - M

Edit / add : didn't want to add a post and bump ( I've said more than enough , lol ).

http://img407.imageshack.us/img407/9278/picturexpq.jpg

This thing just felt so ..." Right " bolting on. I cranked on these fasteners a hell of alot harder than the OT...this thing isn't going anywhere. I degreased grooves on the gun / mount , blue loctite on everything , loctite " stick N seal on the rings...and pencil marks on scope and reciever ( all things the smart people here told me to do in the first place ...as well as using a BKL mount from the start ).

Edit / add 2 :


http://img156.imageshack.us/img156/3073/picture008c.jpg

Getting the mount on this gun was a little different than I had imagined...and I learned what the three threaded holes are for  
Whatever this mount is made of is just insane...I thought I'd strip these threads for sure getting this thing to open up ( the reciever grooves don't go all the way to the back like the RWS ). I removed the factory stop and plugged the hole with a setscrew ( more loctite ). The scope is ancient...an old friend from my first rifle ( Remington 760 30-06 ). I'm not sure if OLD Bushnell's are reinforced on the front end or not...I guess I'll find out.

http://www.youtube.com/watch?v=4mzoVJRUJ5I&feature=related