The J P Enterprises Complete Bolt Assembly (brand part no. JPBC-EB6.5G) is built for AR-15 platform rifles chambered in 6.5 Grendel or 6mm ARC.

Key Specifications

• Bolt face and dimensions machined for 6.5 Grendel and 6mm ARC.
• Built to fit AR-15 platform uppers.
• Sold as a complete bolt assembly, ready to install without additional completion parts.
• Classified as a firearm part/accessory, not a regulated firearm itself — no FFL transfer required to purchase.

Frequently Asked Questions

How is this different from J P’s other 6.5 Grendel bolt assembly? This listing is the complete bolt assembly, ready to install; J P Enterprises also sells a base bolt assembly that may need additional completion parts.

Does one bolt cover both 6.5 Grendel and 6mm ARC? Yes, the listing references both chamberings, which share compatible case-head geometry relevant to this bolt.

Will this fit a standard 5.56 upper? No, this bolt is sized for 6.5 Grendel/6mm ARC and will not headspace correctly in a 5.56/.223 upper.

Buy the J P Enterprises AR-15 6.5 Grendel / 6mm ARC Complete Bolt Assembly

Order the J P Enterprises AR-15 6.5 Grendel / 6mm ARC Complete Bolt Assembly today for fast, insured shipping from a Lubbock, TX gun shop. Browse more J P Enterprises parts in our Rifle Parts category.