YHM FOREARM END CAP FOR YHM – RAILS STANDARD .925″ BARRELS

Finishing your AR build means getting every component right, from the muzzle back to the receiver. The YHM forearm end cap secures standard .925" barrels with precision engineering trusted by builders across Antioch and beyond. As an FFL dealer in Silicon Valley, TacticCAL stocks quality parts that make assembly straightforward.

End cap fit and barrel compatibility

This YHM end cap threads onto YHM rail systems engineered for standard .925" barrel profiles. The 4.35-inch length provides solid indexing without excess overhang. Proper fit prevents gas tube misalignment and ensures your handguard sits flush. Whether you're building from scratch or replacing a damaged cap, verify your barrel diameter before ordering. Questions about fitment on your specific upper? Our team handles private party transfer process details and parts compatibility daily. Visit our firearms dealer in Sunnyvale for our full catalog.

Frequently asked questions

Will this end cap work on non-YHM handguards?

No. This cap is engineered specifically for YHM rail systems with standard .925" barrels. Forcing it onto incompatible rails risks damage and poor indexing. Verify your handguard manufacturer before purchase.

What's the purpose of an AR forearm end cap?

The end cap seals the front of your handguard, protects the gas tube opening, and provides a finished appearance. It also prevents debris from entering internal rail cavities during operation or storage.

How much does an FFL transfer cost in Sunnyvale?

See our pricing and fees page for current FFL transfer rates — TacticCAL keeps fees flat and transparent. TacticCAL is your FFL dealer Saratoga in the Bay Area.