Section 1
Crosman/Benjamin LDCs
(Select Shipping Option: USA or International)

5" & 6.5" TKO Stage-V Mod for Crosman and Benjamin Airguns:
Discovery, Maximus*, 2240, 2400KT, 1300KT (7/16" bbl.) and most Crosman Custom Shop Guns. NEW! Also now works with the Crosman C362 rifle!!
(Fits the Maximus standard rifle with the front sight. Will not fit the Maximus Hunter or 2240XL - See Section 5)



The BEST Moderator for the Benjamin Maximus, Discovery, and other Crosman rifles and pistols that use the standard .435 (7/16" barrel). Custom lengths are available for special projects. Call or email us your needs.

Will Fit and work great on these models:

  • Benjamin Discovery and Benjamin Maximus Standard Rifles
  • Crosman 1300KT, 2240, 2300, 2300T/S, 2400KT, 2250, 2260, 1740, 1760, 760 pistols and rifles.
  • Will also fit the 1377/1322 and 2289 with a barrel of at least 11.25".
  • Fits the Crosman MK-177 with modifications to the factory flash hider.
  • Also fits the Umarex Gauntlet .177 and .22 with the factory shroud removed, however, we recommend a larger .875" TKO Mod for that rifle.
  • Will not fit the 2240 "XL" version .. See Section 5...>

NOTE: This Mod will fit the Benjamin Maximus "Standard" rifle. If your Maximus is the "Euro" or "Hunter" model, please see Ordering Section 5.

If you are ordering this mod for the Discovery rifle, you can send us your original fill cap for free machining and return shipping. Send to the address at the bottom of this page...


We now have custom Machined Fill Caps available for the Discovery rifle!
See the Correct Product Page for more info. (The Maximus rifles do not require the fill cap to be altered.)


Limited time offer: Free TKO 1911 Trigger with purchase of a TKO LDC from this section. Simply enter "FREE 1911 Trigger" in the "Note to TKO" area before clicking the Add to Cart button. This trigger fits the Crosman 22xx pistols with the standard grip frame. (See more information about the TKO 1911 Trigger Here...>.

Section 1 - Crosman/Benjamin Moderators

  • The Discovery and Maximus air rifles by Benjamin (owned by Crosman Corp.) have been a very successful product line. These entry level PCP air rifles are capable of very good accuracy and power. That power comes at the expense of a quite loud rifle. The TKO Moderators have been specifically designed for the valving and power output. The TKO Discovery and Maximus Moderators have been extensively tested since the introduction of these rifles in 2008, and are at the pinnacle of performance for such a small diameter airgun moderator.