LMT MLC 5.56 AR-15 Complete Piston Upper – 16″


  • 16” chrome lined barrel
  • Chambered in 5.56 with 1:7 twist
  • Carbine length piston gas system
  • Standard and suppressed setting
  • Monolithic free float handguard
  • Quick change barrel system
  • M-LOK and QD sling attachment slots
  • Proprietary BCG and charging handle installed


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SKUMLKPU16S Category

This upper receiver features a fully monolithic handguard and receiver design that free floats the barrel for enhanced accuracy. The monolithic handguard also features M-LOK attachment slots for mounting accessories, and has a wedge design that holds the barrel in place and allows for quick removal to change out the caliber. This model comes with a 16” barrel chambered in 5.56 with a 1:7 twist rate, and a chrome lined bore for long term wear resistance. The carbine length piston gas system features a standard and suppressed setting. The piston rod and spring are coated and cryogenically treated for long term durability and corrosion resistance, and can be removed for maintenance. This Lewis Machine & Tool AR-15 Complete Piston Upper Receiver comes with bolt carrier group and charging handle installed, making it ready to drop onto your lower receiver and start shooting.


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