Description
Guarder High Precision 6.02 Interchange Barrel (363 mm for M4)
This Guarder High Precision 6.02 Interchange Barrel is 363mm long and listed for M4 replicas. A precision tight-bore barrel is one of the most effective upgrades for improving the consistency of an AEG, and a 363mm length is a common size for full-length M4 carbines.
A retailer listing for the Guarder 6.02mm 363mm barrel describes it as brass, and lists it for M4, SIG 551 and 249 Para replicas. Guarder is well known for its barrels, hop-up parts and internals.
Why a 6.02mm tight bore
A 6.02mm bore leaves less space around the BB than a typical stock barrel, which helps each shot leave the barrel the same way. With a good hop-up rubber and a correctly set hop, that usually means more consistent groups.
The 363mm length matches a standard M4 carbine outer barrel, so it is a straightforward upgrade or replacement for many M4 AEGs.
Fitting
Fitting an inner barrel means opening the upper receiver, removing the outer barrel and transferring the hop-up unit and bucking. Clean the new barrel first to remove manufacturing oil, and consider a new hop-up rubber at the same time.
Check the hop-up chamber is seated properly, then test-fire and reset the hop.
Key features
- 6.02mm tight-bore inner barrel
- 363mm length
- Listed for M4 replicas
- Brass, per retailer listing
- Helps improve consistency
- Common length for M4 carbines
Compatibility
Listed for M4. A retailer also lists the 363mm Guarder barrel for SIG 551 and 249 Para replicas. Inner barrel lengths and hop-up cut-outs vary between makers, so check the length against your outer barrel and make sure your hop-up unit accepts it. If in doubt, contact us with your replica model.
Care and maintenance
Clean the barrel regularly with a cleaning rod and a dry or lightly silicone-oiled patch to remove dirt and BB residue. Never push anything abrasive through the bore, and keep the barrel straight and protected when it is out of the replica.
Use quality seamless BBs, as dirty or poorly made BBs are the main cause of residue and flyers.
Who is it for?
This barrel suits M4 owners and technicians who want a precision 363mm tight-bore barrel as an upgrade or replacement for a full-length carbine.
Please note: Fitting by an experienced player or technician is recommended. Hop-up rubber is not mentioned in our listing.
