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F1 Firearms

F-1 Firearms BDR-10-3G Matched Billet Upper/Lower Receiver Sets

F-1 Firearms BDR-10-3G Matched Billet Upper/Lower Receiver Sets

Availability: In stock




F-1 Firearms BDR-10-3G Receiver Set is a DPMS (High) patterned large frame receiver set applicable for larger rounds such as the .308 and 6.5 Creedmoor. This set was meticulously engineered to be as lightweight as possible, while remaining rigid and cosmetically pleasing. All areas not inherent to functionality have been stripped away, leaving a beautiful base for any build. Each set is hand finished and matched in-house, for the utmost in operational and cosmetic perfection that our customers have come to expect from us here at F-1. BDR-10-3G sets accept all MIL-SPEC (DPMS) patterned parts as well as Magpul/SR25 mags. 

  • BDR-10-3G matched set
  • Oversized trigger guard
  • Receiver tensioning and trigger adjustment
  • Screws installed
  • Type III Class 2 hard anodizing 
  • 60° beveled magwell
  • DPMS (high) pattern
  • Proprietary fit- won't work with other uppers/lowers
  • Accepts Magpul/SR25 mags
  • Weight 1.48 LBS
  • F-1 Firearms 100% Product Guarantee


FFL Required Before Shipping. Please have your dealer email their license to or they can also fax it in. Please give us a few days to process the information.

Additional Info

Additional Info

SKU BDR-10-­3G
Manufacturer F1 Firearms
Finish No
Barrel Length No
Caliber .308
Configuration No
Option No
Gas Length No
Height No
Rail Length No
Mount No
Profile No
Reticle No
Co Witness No
Size No


Customer Reviews (3)

Not impressed.Review by
The receiver set had a decent sized nick in the picatinny rail, some small burrs on the exterior where the slots are milled out, the milling was sub par in general (rough corners etc), the "fire/safe" markings were very shallow on one side, the receivers have more than the expected amount of play in them, and there was even a very small amount of surface rust on one of the takedown pins. This set looks very cool but is quite unimpressive craftsmanship. It is such a cool set I thought twice about cleaning up the rough spots, giving it a cerakote finish, and rockin it, but this was for a precision build and this set did not suggest precision. I've built 5 ar's now and this was only the second receiver I've ever returned. Rainier was more than helpful and I exchanged for a superbly finished , tight fitting Mega set. Given the other reviews on here, maybe I just got a dud. Props to Rainiers customer service, Great as always. (Posted on 3/14/2017)
No commentReview by
haven't built it yet but it seems first class (Posted on 12/5/2016)
Excellent Product!Review by
Used this receiver set to build a long range AR-10 rig... the fit, finish, and tolerances are quite well done. I have nothing but good things to say about this set. Now I need to find out if they will start making extra upper receivers so that I can do a change barrel rig. I have built numerous rifles, a gunsmith for over 15 years, and a competitive shooter much longer than that. Well Done! You won't be disappointed. (Posted on 10/1/2016)

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