Silencerco Barrel 45 Auto Black .578x28 TPI Fits Glk 21 AC863
SilencerCo
Overview
The Silencerco Barrel 45 Auto Black .578x28 TPI Fits Glk 21 AC863 is a glock barrel for the Glock platform. Tracked starting at $130.72.
Specifications
MPNAC863
Caliber45_ACP
Glock ModelG21
Barrel Length4.60
Glock ThreadedYes
Available Merchants(5)
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Price and stock
The Silencerco Barrel 45 Auto Black .578x28 TPI Fits Glk 21 AC863 was hard to find in September 2026, in stock on only 1 of the 13 days we checked, and today only GritR Sports has it in stock. Prices barely moved in September 2026, holding around $143.65, so there haven't been real sales lately. Buying today, the lowest price is $129.99 at GritR Sports, which matches the best price we saw in September.
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