Trending Bolt Carrier Groups

The most popular AR-15 bolt carrier groups this week, ranked by builder interest.

Updated Nov 3, 2026 · ranked by real data

The parts builders added most in October 2026, ranked from every build on GunPartPicker.

1.Bravo Company M16 Bolt Carrier Group BlackBravo Company · Bolt Carrier Group
2.PSA AR-15 Bolt Carrier Group 5.56 Full-Auto Nitride MPI - 516446953Palmetto State Armory · Bolt Carrier Group
3.Wilson Combat M16 Bolt Carrier Assy 5.56 NATO Polished Black NitrideWilson Combat · Bolt Carrier Group
4.Cryptic Coatings 5.56 NATO AR-15 Bolt Carrier Group - Mystic BronzeCryptic Coatings · Bolt Carrier Group
5.Sons of Liberty Gun Works AR-15 5.56 Bolt Carrier Group 158 Carpenter Sp/HPT/MPISons of Liberty Gun Works · Bolt Carrier Group
6.KAK Industry Bolt Carrier Group For AR-15 8620 Steel Construction Chrome Lined Phosphate Finish Black C158 BoltKAK Industry · Bolt Carrier Group
7.Wilson Combat .308 Win Bolt Carrier Assembly, Nickel Boron - TR-BCA-NB-308Wilson Combat · Bolt Carrier Group
8.LMT Defense 5.56 Full Auto Bolt Carrier Group Ambidextrous Charging Handle Combo BCG Charging Handle Upgrade KITLewis Machine & Tool · Bolt Carrier Group
9.Spike's Tactical 5.56 NATO M16 Cut Lightweight AR-15 Bolt Carrier Group - Nickel BoronSpike's Tactical · Bolt Carrier Group
10.Daniel Defense Complete Bolt/carrier Group, M16Daniel Defense · Bolt Carrier Group

Updated Nov 3, 2026 · counts come from real builds on GunPartPicker

Most Popular AR-15 Bolt Carrier Groups This Week

These rankings update every 30 minutes based on what GunPartPicker visitors are actually clicking through to buy — not just browsing. Compare prices and stock status across all our partner merchants in one place, and use the Sort menu to switch between Today's data and the full week or to reorder by price.

Sort by: