Crosman 3/8″ or 21mm Scope Mounts (Set of 2)

(14 customer reviews)

$9.00

Clamping Optics Mount for Crosman Airguns

  • 21mm weaver or 3/8″ dovetail
  • 3D printed in the USA in Texas
  • Compatible with any unobstructed 7/16″ Barrel
  • Made to be Self-Centering on the Crosman 1322 and 1377
  • Replaces the Crosman 459MT Intermount
  • FREE Shipping to anywhere in the US
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Description

Use this mount to add a scope, red dot, or other optic to many airguns that use a 7/16″ barrel. You can select either a 3/8″ dovetail mount or a 21mm weaver mount when checking out.

Much like the Crosman 459MT Intermount, it is compatible with many Crosman airguns. With the 1322 and 1377 it is self-centering. Since it is made from plastic it clutches the barrel very firmly without scratching or damaging it. It uses 2 screws to clamp on to a 7/16″ airgun barrel for a firm grip. Instead of using only one screw threaded into aluminum, this clamp uses two 18-8 Stainless Steel screws threaded into flush-mounted stainless nuts.

Included in the package will be 2 mounts(4 pieces), 4 stainless steel socket cap screws with nuts, and a hex wrench for installation.

Many customers have asked if it is compatible with older model 13XXs. I have had a few customers with 1377s from the late 1970s and early 80s use this mount on their airguns after removing the spacer between the barrel and pump tube.

Additional information

Weight1.2 oz
Dimensions1 × 1 × 1.5 in
Scope Base Style

3/8" Dovetail, 21mm Weaver/Picatinny

14 reviews for Crosman 3/8″ or 21mm Scope Mounts (Set of 2)

  1. Jerry LaLonde (verified owner)

    I love your crosman 1377 scope mounts..they fit perfectly on my gun made accuracy perfect…they are awesome..keep up the great work…i will be ordering more items..highly recommend…love the thank you note. Speedy delivery too. Thank you

  2. Ben Myers (verified owner)

    I used these to put a red dot on my 1322 and they work perfectly. The design is awesome and much improved over the crosman version (which you can’t get in a weaver version). Shipping was very fast and I couldn’t be happier. Great company to do business with, hope they come out with more 1322 products!

  3. Todd R. (verified owner)

    SUPERIOR PRODUCT:
    Without question, these are the BEST scope mounts for the Crosman 1377 on the market!! These grip the barrel and don’t let go. My scope is rock solid with these mounts!

    If you’re undecided whether or not you should get these or the Crosman 459MT mounts, don’t even think twice. My first go around I went with the Crosman mounts and no matter how much you try to tighten those mounts, it still wobbles. The screws will strip if you try to tighten them too much. Mine did. Rest assured you will not go wrong with the mounts from from Buck Rail!!

  4. Jando (verified owner)

    Outstanding product at a very reasonable cost. Family-owned and operated; a big ups to the thank you note from the kiddos 🙂

    quick shipping, 10/10 what more could you ask for?

  5. LeeS

    Ten stars. I went down a rabbit hole looking for the right scope for a 1377, opinions all over the board, and all I needed was to remove some aggressive sparrows that were harassing our purple martins. And then I stumbled across Buck-Rail. I was impressed with the installation video and thought the 3D printing would yield a good fit. YES it did. This plus the Hawkeye sight really upped my game and for much less than other options. Thanks Buck Rail.

  6. Michael Montgomery (verified owner)

    Vary good mounts, I put them on my 1322. I’m going to get a 1377 next, I’ll be back for another set for it.

  7. Jed Paul

    Very solid mount, a vast improvement over the Crosman mounts. No movement of optics. Now just need to sight in and go shooting.

  8. Andre Thomas (verified owner)

    I’m extremely satisfied with your scope mounts. At first, I was cautious and ordered only one dovetail and 2 Weaver mounts.

    These items arrived promptly via U.S. Postal Service.

    I installed the Weaver mount first. Everything went fast and simple. Zeroing in my red dot was no problem with these mounts…and has maintained zero to this day. The fit, finish and build quality is very good. Properly installed, these mounts will do the job.

    In conclusion, I’ll simply state that I ordered more Weaver mounts for myself and for gifts.

  9. NY Plinker (verified owner)

    The Best mounting system for the 137u or 1322. Don’t let the plastic dissuade you -it’s super strong and holds zero perfectly without adding weight. The value of the product exceeded my expectations to the point that I’d happily pay twice as much for such a stellar product from a great family business. Be sure to check out the vids on mounting as I did before buying and you’ll see how good these little rails are for yourself. Thanks, Buck-Rail, for such a great, lightweight mount!

  10. Jason H.

    I first bought Crosman 459MT Intermount – it’s so unstable and causing barrel movements all the time – completely useless.

    Then I found Buck-Rail and this wonderful replacement! It’s very well designed. Not only it’s a great mount, but also serves as a spacer between barrel and the main tube. Now my mounted scope is rock solid. This is truly one of a kind product.

  11. Larry martell (verified owner)

    Fast reply to email, fast shipping, great guy and great part

  12. JT (verified owner)

    Fast service and great craftsmanship! Crosman mounts are garbage compared to these. Btw….cute note. Thanks

  13. Jan Duivestein

    Terry thanks
    For the fast delivery of the mounts. (To the Netherlands) They are much better than the Crosman 459MT mounts

  14. Big J’s Outdoors & Airguns (verified owner)

    An amazing product at an amazing price! Made it possible to mount a scope on my 1377 and maintain accuracy. No more barrel flopping around. Can’t recommend these enough! Thank you!

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