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Universal sound moderator suitable for all air rifles up to 6,35 mm calibre. It
features two adapters for attaching it to either a 1/2 UNF or a CCW M14 thread.
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$ 44.7
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New videos and reviews every day 6000+ reviews from our customers Universal sound moderator Umarex SD4 is suitable for all air rifles up to 6,35 mm calibre.
It owes its high efficiency (25 db) to its 6 chamber construction machined from aluminium using CNC technology.
To ensure maximum compatibility, it comes with two threaded adapters - CCW M14 and 1/2 UNF.
13× rated
By submitting your review, you are agreeing to our review guidelines. It will be published once we make sure it corresponds with our terms and conditions.
Petr Střeleček
04.11.2025
Machine translation
I was pleasantly surprised by the excellent damping, which is, however, more
effective for larger calibers of 5.5 and 6.35 mm due to the 8.5 mm
partitions.
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