Double Diamond 10mm to .40 S&W Conversion Barrels
$169.99
SAVE MONEY ON AMMO! Reduce Recoil!
Easily convert your 10mm Glock to shoot .40 S&W in seconds!
Designed to allow shooters to change calibers by simply dropping in the Double Diamond conversion barrels in conjunction with the appropriate caliber magazine. The barrel is cut to fit in the ejection port of the intended slide.
Swapping out recoil guide rods, ejectors, extractors, or strikers is not necessary.
Please note: Will work in Gen 1, 2, 3 and 4 Glock handguns.
Need to switch your .40S&W to 9mm?
Click here!
Looking to convert your .45ACP to 10mm?
Click here!
2 reviews for Double Diamond 10mm to .40 S&W Conversion Barrels
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Tom –
This conversion barrel is everything as stated. Works perfectly and adds a tremendous value to the G20. Very accurate. Looks nice. Fits perfect. Is a supported chamber and the fired brass will fully pass gauge before resizing. 10mm can be expensive and difficult to find brass or ammo. Alternately the 40 is pretty readily available. Price is happily affordable. Very happy with it.
Brandon –
This barrel in conjunction with the double diamond 3.5 connector made my G20 gen 3 super smooth! Low recoil, saving money, and extremely accurate. No issues with feeding and better lockup. The finish is durable as well. After hundreds of rounds, I can wipe the barrel off with clp and it looks brand new with no wear marks.