Crosman M4-177 Suppressor

(8 customer reviews)


Crosman M4-177 Suppressor

  • Includes adapter, thread cover, and suppressor
  • Adapter replaces stock muzzle cover. Only requires removal of two phillips screws
  • Threaded design allows easy removal/installation of suppressor
  • 3d printed with ABS in the US by a veteran-owned business
  • Free same or next business day handling and 2-5 day shipping within USA



This suppressor was designed exclusively for the Crosman M4-177. The adapter replaces the stock faux flash suppressor at the end of the muzzle. It is threaded to accept either the included faux air stripper or the suppressor. The adapter features a top and bottom picatinny mount, allowing you to still mount the front “iron” sight, flashlight, laser, bipod, etc. The suppressor uses a 7 cone-shaped baffle design. It is 3d printed in the USA using ABS plastic by a veteran/family-owned business.

To install:

  1. Remove the two small phillips screws that retain the stock muzzle end cover thingymajiggy.
  2. Remove the stock muzzle end cover thingymajiggy by sliding it off of the end of the barrel.
  3. Slide the adapter onto the end of the barrel.
  4. Align the two tabs to slide in between the stock brackets(There is no top or bottom).
  5. Slide the adapter in until the screw holes are aligned.
  6. Reinstall the two screws using a small phillips screwdriver. Do not over-tighten.
  7. If you are installing the suppressor just remove the cap on the end of the adapter by turning it counter-clockwise then thread on the suppressor by aligning it on the adapter and threading it on by turning it clockwise.

Note: Do not over tighten the suppressor. It may be very hard to remove later. If you screw it in until it stops, back it off by turning the suppressor counter-clockwise 1/2 turn. You can apply a grease lubricant to the threads to make them easier to install and uninstall.

Note: If you experience a decrease in accuracy you can drill out the baffle inner diameter larger and larger until you get the result you want. Uninstall the suppressor before you do so, though.

Thanks for lookin’!


Additional information

Weight3.2 oz
Dimensions6.25 × 3 × 1.25 in

Adapter Only, Adapter and Suppressor

8 reviews for Crosman M4-177 Suppressor

  1. Dave (verified owner)

    Lightning fast delivery – excellent print quality – functions well – amazing price!

  2. Philip Wilson

    Great product works really well had a small problem and contacted Buck rail they responded right away and I explained the problem and they fixed it right away no Hassel outstanding customer service five star two day return love the product and service great company

  3. Joshua (verified owner)

    fit perfect, followed the instructions and install went smoothly.

  4. Phil (verified owner)

    Great product, nice design and it fits perfect, i measured a decrease from 105db to 98db. Measurement was taken 5cm away from Silencer, so pretty close. I am surprised how well it works and also the shipping to europe was okay! Thanks a lot!

  5. Bob Graham (verified owner)

    Very nice product. Easy to install. Quick shipping. Works well and looks great!

  6. Charles Kim

    Very nice 3d printed 2 piece set that perfectly fits my airgun. Very easy to install, don’t even need instructions. The silencer makes a noticeable difference in the sound it makes and is overall quieter. Shipping was fast and I think the price for the parts was more than fair.

  7. Corey (verified owner)

    Easy to install and to remove . Definitely worth the money the look is good to and definitely sound reduction

  8. D. (verified owner)

    Worst quality 3d printing scuffs and markings all over almost broke my m4 .177 trying to pull it off thanks. also will not shoot properly the bb/ pellet will bounce off the walls of the “silencer”. Actually called a suppressor it suppresses sound not silences.

    • Terry

      This customer never contacted me with his/her concerns. I’m always happy to replace parts or refund folks who aren’t satisfied with our products. In fact, I even refunded this discontented individual after approving this review. I can fix the the problems I know about and will always be quick to do that. I’ll even do it with a smile on my face! In other news, there’s little hope for humanity…

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