GE / ED.0708 · Announced · New pump-action rimfire rifle
Derya Arms
TM22 Pump 20 in
Derya's announcement names this 20-inch TM22 Pump alongside the 18-inch model at the same $429 MSRP. The pump-action family uses 1:16 right-hand-twist, 1/2×28-threaded barrels, a top Picatinny rail, front bead, adjustable cheek pad and basepads, and includes two 10-round TM22 magazines while accepting 15- and 25-round versions. The maker marks it compliant for California, Maryland and Massachusetts. A separate exact 20-inch product page, UPC, exact weight and overall dimensions were not published when checked, so those fields remain unknown. The linked Written platform review covers the TM22 Pump family but does not separately test or measure the 20-inch configuration.
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USA Gun Shop
Derya TM22 Pump: New Pump-Action .22 LR Rifle
Covers the exact TM22 Pump family and identifies the 20-inch configuration. It is a specification and launch analysis, not a hands-on or live-fire review; it does not supply a separate exact 20-inch product page, measurements, weight or configuration-specific test.Link checked Nov. 6, 2026Watch or read ↗Continue the archive
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What is the Derya Arms TM22 Pump 20 in?
The TM22 Pump 20 in is cataloged by Gun Editions as a new pump-action rimfire rifle from Derya Arms, chambered in .22 LR. Its recorded status is announced, its original price is $429, its production run is standard-production model · quantity not limited, and its documented sell-through is not publicly documented.