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  BCM4 Lower Receiver Groups
All BCM4 Lower Receiver Groups feature
  • Machined from Aluminum Forgings 7075-T6
  • Hardcoat Anodizing: MIL-A-8625F, Type III, Class 2
  • BCM® Milspec 7075-T6 Receiver Extention
  • USGI Mold M4 Stock
  • Staked M4 Lock Nut
  • USGI H Buffer (1 USGI Tungsten, 2 Steel)
  • Magpul MOE Enhanced Trigger Guard
  • BCM Gunfighter's Grip, Mod 0 - Black
  • Low Shelf for RDIAS installation
  • Low Shelf for Accuwedge use
  • Un-notched Hammer compatible with 9mm use
  • Fire Controls marked SAFE and SEMI 
BCM® Mil-Spec Receiver 7076-T6 Receiver Extension with USGI Stock Mold and latch hardware.
M4 Lock Nut is staked per Mil-Spec assembly procedures.
H-Buffer with correctly weighted USGI tungsten weight.
Magpul MOE Enhanced Trigger Guard is standard.
Featuring Low Rear Shelf for RDIAS or Accuwedge installation.
Un-Notched Hammer designed increased reliability with sporter carriers and 9mm conversions.
Selector Markings are SAFE - SEMI, featured on both sides of the receiver.
Your choice of BCM® M4 Stock, VLTOR Modstock,  M16A2/A4 stock, or no stock body (will include the M4 milspec 7075T6 receiver extension, so you can add your own stock body).
Sorry but we do not offer custom configured lower receiver groups.
BCM® Lower Receiver Groups are not directly available from the website.  However you can place an order using the form below.  If you would like to purchase a BCM4 Lower Receiver Group they will need to be transfered to your local FFL (Federal Firearms Licence) holder. Please print out the order form below.
It is the purchaser's responsibility to be familiar with local laws regarding the purchase and ownership of this product. 
All BCM Lower Groups are complete and cannot be shipped to California. 
For shipments of a CA compliant BCM Lower Receiver group to CA, please contact .
These lower groups cannot be shipped to CT, MA, NJ, NY
Thank you.
Due to the political climate and the demand of Bravo Company Lower Groups we are completely sold out.