Description
ZRO Hardguard System
Steel Dowel Pin Precision Interface between HG and Receiver.
Works with SLR Receivers with ZRO locking hole. ( Available Feb 1 2023)
We now will offer a FREE service to drill any AR15 Upper receiver to receive the ZRO dowel pin.
Send us your stripped receiver AND a return label. We will drill upper and return to you.
- For AR15
- 10.7″ exact length is ideal for 11.5″ barrels. Allows use of any muzzle device / suppressor
- 1.35″ ID
- Ideal for NV/ IR setups
- Includes Hardened Nitrided Steel Dowel Pin
- 2 Limited Rotation QD’s
- No timing of barrel nut required, no shims needed
- Mil-Spec Hardcoat Anodize
- 7075 Barrel nut included w/Hardcoat Anodize
- Free Floating Design
- Proven Slip fit locking mounting system
- Barrel nut uses standard wrenches or SLR Billet wrench for perfect fit
- Continuous top rail design allows optic mounts to cross receiver/handguard threshold
