9mm AR Billet LRBHO Upper Receiver

$134.99

Only 3 left in stock

9MM Dedicated Upper Receiver with LRBHO

This high quality pistol caliber AR billet upper receiver has Last Round Bolt Hold Open (LRBHO)

7075 T6 aircraft grade billet aluminum.

Only 3 left in stock

Description

9MM Dedicated Upper Receiver with LRBHO

This high quality AR-9 billet upper receiver is made from a solid piece of 7075-T6 aluminum Quality Aircraft-grade construction.

Technical Information

  • Machined from 7075 T6 aircraft grade billet aluminum
  • Contains integrated Last Round Bolt Hold Open (LRBHO) technology that accepts Glock style magazines
  • Raw tumbled and media blasted finish
  • Compatible with all standard AR-15 / AR-9 components and most aftermarket parts
  • Manufactured to MIL-SPEC and will fit all 9mm AR lower receivers without LRBHO features
  • Designed to match lines with C-9 Billet Lower

Once assembled the small “hook” end of the wire form in the upper should be pushed up by the follower of an empty Glock magazine which will engage the bolt catch on the last round fired to hold the bolt in the locked position.  If it does not engage, or engages before the last round is fired you can make VERY SMALL adjustments by SLIGHTLY bending the “hook” end down to lock faster or up to lock slower.  They are set and function checked during assembly with brand new Glock magazines and our standard bolt catches.  Because of varying magazine specs, magazine specs changing over the life of the product, different thicknesses of the pad on the bolt catch and other variables, this adjustment may be necessary with your specific parts.

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