The outer barrel sets your rifle's length and look, and holds the inner barrel in place. Changing it lets you convert between CQB and full-length builds, or replace a damaged part.
Choose outer barrels for M4 AEGs from E&C and ZCI in 10.5" CQB and 14.5" lengths, plus a JG AUG sniper front end and a stainless barrel nut for the TM MK18.
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Jaeger Precision
Jaeger Precision Stainless Steel Barrel Nut for TM MK18 NGRS & GBBR
Regular price £29.99Unit price -
Frequently Asked Questions
Need To know more?
What length outer barrel do I need?
What length outer barrel do I need?
Do I need a new inner barrel?
Do I need a new inner barrel?
Will it fit my M4?
Will it fit my M4?
What thread is the muzzle?
What thread is the muzzle?
M4 Outer Barrels
Choose the E&C 10.5" CQB outer barrel, E&C 14.5" outer barrel or the E&C 2-part barrel, which converts between both lengths. The ZCI M4 outer barrel set suits both AEG and GBB.
AUG and MK18
AUG owners can fit the JG AUG sniper front end for a longer barrel. Tokyo Marui MK18 owners can upgrade to the Jaeger Precision stainless barrel nut.
Matching Your Inner Barrel
Your outer barrel must be long enough to house your inner barrel. A shorter outer barrel may need a shorter inner barrel, and that can change the ideal cylinder. See also handguards and thread adaptors.
