The MC51 Stainless Steel barrel from PDI Japan represents the finest level of AEP upgrades on the market.
It is our go-to barrel for all AEG builds due to the tight but consistent inner bore and the extremely reliable tolerances.
PDI Steel barrels are cold hammer forged with a polished crown and an average sized hop window. The tighter bores are ideal for improving the cylinder to barrel air ratio to maintain energy output with heavier ammo.
PDI Stainless Inner Barrel for TM MC51 (285mm 6.01)
Compatible with the Tokyo Marui G3 MC51 and virtually all AEGs with a 10" outer barrel.
Perfect for all TM NGRS M4 CQBRs and HK416 DELTAs.
Ideal when paired with the PDI W-Hold AEP hop rubber and flat nub.