SD ZRO 4.25″ ML – 8.25″ OAL

Description

SLR SD ZRO 4.25″/8.25″ Suppressor Handguard

4.25″ base length / 8.25″ overall length

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 Upper receivers

• 4.25″ base length is ideal for 5.0″ barrels and any suppressor up to 1.75″ OD 
• 8.25″ Overall length 
• Barrel Shoulder to end of HG is 4.0″  This allows shorter K type suppressors and anything longer. (At least 4.5″ suppressor length recommended)
• 1.8″ Handguard ID
  
• Includes 4 special locking nuts for accessories on suppressor end to mount without interference with suppressor. (Up to 1.7″ OD Suppressors)
• 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 and universal anti rotation insert
  
• Barrel nut uses standard wrenches or SLR Billet wrench for perfect fit
• Continuous top rail design allows optic mounts to cross receiver/handguard threshold
• 9.8oz with Barrel Nut and Hardware

NOTE: Built Rifle images may show STD or ZRO Anti Rotation system (HG’s are the same except for A/R)

NOTE: Make sure any rear end caps on direct threaded cans are very secure before threading on a suppressor.

If rear end cap stays on when can is removed it may be very difficult to remove end cap from inside HG.