Tacfire Ar10 .308 Bolt Carrier Group Dpms Profile (U.S.A. Made)

A quality bolt carrier group is the heart of reliable AR-10 performance, and the Tacfire AR-10 .308 Bolt Carrier Group in DPMS profile delivers the durability and precision you need for long-range shooting, hunting, or precision rifle work. Built in the U.S.A., this BCG is engineered to handle the demands of full-power rifle cartridges with components selected for hardness, wear resistance, and dependable function.

The carrier is machined from 8620 steel and the bolt itself from 9310 steel—materials chosen for their strength under the higher pressures of .308 Winchester. Both the bolt and gas key receive QPQ nitride treatment, a case-hardening process that dramatically improves wear resistance and corrosion protection compared to standard phosphate finishes. The bolt is magnetic particle inspected during manufacturing to catch internal flaws before they become field failures, and shot peening further strengthens critical surfaces.

Practical details matter: the carrier is serrated to work smoothly with your forward assist, and the gas key is properly staked and treated. This is a DPMS-profile group, so it'll drop into any .308 AR that uses that standard. Made right here in the U.S.A., it's the kind of part that rewards you with consistent accuracy and trouble-free operation across thousands of rounds.

Key Features

• 8620 steel carrier and 9310 steel bolt for strength and durability in .308 loads
• QPQ nitride treatment on bolt and gas key for superior wear and corrosion resistance
• Magnetic particle inspection ensures internal integrity before you take it to the range
• Shot-peened for added fatigue resistance on high-stress surfaces
• Serrated carrier design compatible with forward assist
• Properly staked, nitride-treated gas key
• DPMS profile for standard AR-10 compatibility
• U.S.A. manufactured

Specifications

Frequently Asked Questions

What AR-10 platforms does this DPMS bolt carrier group fit?

This is a DPMS-profile BCG, meaning it will fit any AR-10 rifle built on the DPMS standard. Confirm your rifle's profile before ordering to ensure compatibility.

Why does the bolt need to be magnetic particle inspected?

Magnetic particle inspection reveals internal flaws and stress cracks that could lead to catastrophic failure under high pressure. Since .308 generates significant chamber pressure, this quality control step catches defects invisible to the naked eye before the bolt reaches you.

How does QPQ nitride treatment improve performance?

QPQ nitride case-hardening dramatically increases the hardness of the bolt and gas key, reducing wear from thousands of firing cycles and improving resistance to corrosion from cleaning solvents and moisture. It's a more durable alternative to standard phosphate finishes.

Is this bolt carrier group suitable for hunting and long-range shooting?

Yes. The materials and manufacturing processes used here—high-strength steel, heat treatment, shot peening, and quality inspection—make this BCG well-suited for both hunting and precision rifle applications where reliability is critical.