ACR Parts - Bushmaster and Remington Defense

Location: Harvest, AL

5 posts in this topic

ACR parts for sale.  Components are either Bushmaster (BFI) or Remington Defense (Rem Def).

Condition is NOS unless otherwise specified. Shipping is $15.

Barrels / Trunnion

  • 14.5" 5.56 NATO with gas piston, spring, and gas regulator, painted Field Drab (30118), includes 51T AAC Flash Suppressor.  Barrel nut is for Rem Def non-QD trunnion, but can be changed to QD throw lever to fit standard BFI trunnion - $1200
  • Lightweight Trunnion, Rem Def. Aluminum, non-QD barrel. - $450

Bolt Carrier Group

  • 5.56 Bolt Assembly, Rem Def. (with Nickel Boron coated bolt, ejector, extractor, extractor pivot pin) - $800
  • 5.56 Bolt Assembly, BFI - $550
  • Firing Pin, Titanium - $150
  • Firing Pin Spring- $20
  • Firing Pin Retainer w/ o-ring - $25
  • Cam Pin - $25
  • Action Spring Assembly, Rem Def (aluminum guide rod and rear support). - $300
  • Action Spring Assembly, BFI - $200
  • Semi-auto bolt carrier, BFI (slightly used) - SOLD
  • Bolt Carrier, Remington Defense Full-Auto (slightly used) - $1800

Stocks / Handguard

  • FDE Side Folding buttstock (used) - $175
  • Black Side Folding buttstock - SOLD
  • BFI M-LOK Handguard - $350

Lower / Trigger Group

  • Extended bolt catch button, Black, Rem Def. - SOLD OUT
  • Extended bolt catch button, Field Drab (30118 color), Rem Def. - $29


  • ACR UTM (Ultimate Training Munitions) Full-Auto Bolt Assembly (used), requires standard Action Spring Assy from original carrier. Includes new UTM AR Magazine - $1300









Edited by ThePartsStash

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Do you still have the bfi action spring assembly?

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Do you still have the

5.56 Bolt Assembly, BFI - $550

Action Spring Assembly, BFI - $200


I'm basically looking for a complete BFI Bot carrier assembley


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