ALG Defense M16 Bolt Carrier Group - Phosphate

Manufactured by ALG Defense, Inc.
SKU: 08-155
MPN: 08-155
Manufactured by ALG Defense, Inc.
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If you are looking for a no frills reliable AR-15 bolt carrier group, ALG Defense is what you should be looking at. This BCG features a carrier machined from 8620 steel and a bolt machined from 9310 steel with all the features you expect from a more expensive option. The bolt is shot peened to improve strength and is magnetic particle inspected to ensure no cracks or deformation has occurred and is high pressure tested for peace of mind that you can count on it for thousands of rounds. The gas key is made from 4130 steel and properly staked with grade 8 screws and chrome lined inside to reduce erosion from hot gasses. The entire AR-15 BCG is Manganese Phosphate coated for durable wear resistance and oil absorption.

  • 5.56/.223/.300 Blackout
  • M16 profile
  • Manganese Phosphate coating
  • 8620 carrier
  • 9310 shot peened bolt
  • HPT and MPI
  • 4130 staked gas key
  • Chrome lined internals
  • Crane O-ring installed with extractor

ALG Defense is a sister company to Geissele Automatics, utilizing the same manufacturing and engineering teams to create high quality products at a price that doesn't break the bank. Owned by Amy Lynn Geissele, ALG is proudly focused on providing superior products for target shooters, military personel, and law enforcement, backed by superior customer service. Further elevating ALG Defense is their industry leading lifetime warranty.
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Bolt FinishManganese Phosphate
Bolt Material9310 Steel
BrandALG Defense, Inc.
Caliber Gauge5.56 NATO / .300 BLK
Carrier FinishManganese Phosphate
Carrier Material8620 Carpenter Steel
Carrier StyleM16 Bolt Carrier
High Pressure TestedHigh Pressure Tested
Magnetic Particle InspectMagnetic Particle Inspected

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