AR-10 80% Lowers, Uppers & Parts
Browse AR-10 parts and 80% lowers optimized for .308 and 6.5 Creedmoor platforms. The category features unfinished receivers, complete upper kits, match barrels, and durable BCG options. Each product page includes compatibility notes, material specs, and recommended platform pairings. Because AR-10 components are larger and often have different shipping restrictions, we flag items requiring seller verification or FFL transfer. Use the comparison tool to match barrels and bolt carriers, and check the Legal & Compliance hub before checkout to confirm what’s allowed in your state.
Each AR-10 part in our lineup is precision-machined for maximum compatibility with DPMS-pattern receivers. Choose from billet or forged 80% lowers, match-grade barrels, and complete upper assemblies. Whether you’re building a lightweight hunting rifle or a long-range precision rig, these AR-10 components meet the same quality standards trusted by professional shooters.
FAQ
Q1: What is the difference between an AR-10 and an AR-15?
The AR-10 is a larger platform chambered in .308 Winchester or 6.5 Creedmoor, offering more power and range than the smaller AR-15, which is typically chambered in 5.56/.223.
Q2: Are AR-10 parts interchangeable with AR-15 parts?
No. The AR-10 has a different size and design, so its receivers, barrels, and bolt carrier groups are not interchangeable with AR-15 components.
Q3: What type of lower does the AR-10 use?
Most AR-10 rifles use a DPMS-pattern lower receiver, but always confirm compatibility before purchasing upper and lower parts.
Q4: Can I build an AR-10 using an 80% lower?
Yes, an 80% AR-10 lower can be finished at home using a proper jig and tools, allowing you to build a non-serialized rifle for personal use (where legal).
Q5: What caliber options are available for AR-10 builds?
The most common calibers are .308 Winchester and 6.5 Creedmoor, but other options like .243 Win and .260 Rem are also compatible with AR-10-pattern rifles.