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Questions & Answers
Is the DPMS LR-308 model for a high or low tang? Will it be flush with the M5E1 308 (high tang). Expert Answer

The manufacturer states that the JP Enterprises MK III Modular Handguard Signature Series for the DPMS LR-308 is full compatible DMPS LR308 pattern rifles. They do not specify if it is high or low tang or designed to fit both. For that information I recommend contacting JP Enterprises. However, the Aero Precision M5E1 upper is set up to only accept Aero Precision M5E1 handguards.

by Hunter, Gear Expert, March 31, 2022
What is the inside diameter of this? Expert Answer

Please email us at techsales@opticsplanet.com so we can further answer your question.

by Ben, Gear Expert, February 12, 2021
Customer Reviews
Helpful Positive Review
JP MK ll Modular by rigo0405, Verified Owner, September 21, 2025
This a great handguard JP Enterprises handguards are high-quality, comfortable, and durable, but their installation is difficult and they have an older, proprietary attachment system, making them less ideal for DIY projects or lightweight setups com...
Read More...
1/1 found this helpful
Helpful Positive Review
Amazing handguard by Paul Maniscalco, Verified Owner, October 16, 2020
I recently purchased this JP handguard for a AR308 build I was doing. After watching a few videos online on how to install this handguard I installed it as I went along with the video. My first impression was I was shocked how light this 17.25" handg...
Read More...
6/6 found this helpful
Helpful Positive Review
Light and sleek by Mike, August 28, 2016
Gives my rifle a tubular sleek style and it's very light too. Replaced it instead of the stock plastic hand guard and this gives a lot of clearance for the gas block. It's hard finding a hand guard for the high rise dpms sportical but a nice alumin...
Read More...
3/3 found this helpful
Helpful Positive Review
MK III Handguard by Revelation, February 10, 2022
Extremely pleased with my HK III handguard. I love the look of the HK III and the quality is excellent. Fit and finish is great. I will be ordering another one soon. Optics Planet pricing helped too !!!
1/1 found this helpful
Helpful Positive Review
Awesome handguard by Ko, June 23, 2016
fits very nice and very firm for a longer handguard , had to go with a tube style with my dpms sportical 308 and wasn't sure how I'd like one with out a rail the height of an upper but this looks good and am very pleased
1/1 found this helpful
Helpful Positive Review
Handguard for M&P@10 by TR, April 26, 2017
this hand guard installed easily enough. it's a vast improvement over the standard hand guard. i very much like the tube design, both to handle and aesthetically. i especially like the 4 screws that allow you to 'tune' the angle, so to speak. thi...
Read More...
3/3 found this helpful
Read All 14 Reviews

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Color:
Black
Finish:
Anodized
Fabric/Material:
6061-T6 Aluminum
Gun Make:
Armalite
Gun Model:
AR-15, M16
Handguard Length:
12.5 in
Gun Rail:
M-LOK
Condition:
New
Included Accessories:
Standard

Code: J5-HZ-JPSHG-JPHG3-1M

MPN: JPHG3-1M

UPC: 812872020976

Free Two Day Shipping
List: $225.00Save $11.25
$213.75

Product Info for JP Enterprises MK III Modular Handguard, Signature

Equip this JP Enterprises MK III Modular Handguard, Signature to add some extra tactical utility and a unique aesthetic to your weapon. JP Enterprises machined these AR Handguards & Forends from 6061 T6 aluminum for a lightweight yet rugged build, and the barrel nut is made from 4140 steel for maximum durability. Each JP Enterprises MK III Modular Signature Rifle Handguard is hard coat anodized for an extra tough structure that is resistant to corrosion and abrasion. For accessory attachment, you can purchase and easily add rails to this handguard. Pick up a JP Enterprises MK III Modular Handguard w/ Signature Tube Style for a reliable grip with some tactical advantages.image

Specifications for JP Enterprises MK III Modular Handguard, Signature:

Manufacturer: JP Enterprises
Color: Black
Finish: Anodized
Fabric/Material: 6061-T6 Aluminum
Gun Make: Armalite
Gun Model: M16, AR-15
Gun Type: Rifle
Handguard Length: 12.5 in
Gun Rail: M-LOK
Condition: New
Included Accessories: Standard
Quantity: 1

Features of JP Enterprises MK III Modular Handguard, Signature:

  • Machined from 6061 T6 aluminum with a 4140 steel barrel nut
  • Includes two JPHGS quick-detach sling studs
  • Hard coat anodized

Package Contents:

  • JP Enterprises MK III Modular Handguard, Signature

JP Enterprises MK III Modular Handguard, Signature Orderable Models

List of Orderable Models

  • JP Enterprises Signature Handguard for AR-15/M16 Full Length, Black JPHG3-1M , MPN: JPHG3-1M , UPC: 812872020976 , Code: J5-HZ-JPSHG-JPHG3-1M

JP Enterprises MK III Modular Handguard, Signature Unavailable & Discontinued Models

List of Unorderable Models

  • JP Enterprises Signature Handguard for AR-15/M16 with Mid-length Gas System, Black JPHG3-5M , MPN: JPHG3-5M , UPC: 812872020983 , Code: J5-HZ-JPSHG-JPHG3-5M
  • JP Enterprises Signature Handguard for DPMS LR-308, Mid-length, Black JPHG3-5D , MPN: JPHG3-5D , Code: J5-HZ-JPSHG-JPHG3-5D
  • JP Enterprises Signature Handguard for DPMS LR-308 or Knights SR-25 only, Full Length, Black JPHG3-1D , MPN: JPHG3-1D , UPC: 812872021041 , Code: J5-HZ-JPSHG-JPHG3-1D
  • JP Enterprises Signature Handguard for Armalite/Bushmaster/Rock River AR-10, Mid Length, Black JPHG3-5A , MPN: JPHG3-5A , UPC: 812872021065 , Code: J5-HZ-JPSHG-JPHG3-5A
  • JP Enterprises Signature Handguard for Armalite or Bushmaster/Rock River AR-10, Full Length, Black JPHG3-1A , MPN: JPHG3-1A , UPC: 812872021058 , Code: J5-HZ-JPSHG-JPHG3-1A
  • JP Enterprises Signature Handguard for AR-15/M16, Extra Long Length, Black JPHG3-6M , MPN: JPHG3-6M , UPC: 812872021010 , Code: J5-HZ-JPSHG-JPHG3-6M
  • JP Enterprises Signature Handguard for DPMS LR-308, Extra Long Length, Black JPHG3-6D , MPN: JPHG3-6D , UPC: 812872021003 , Code: J5-HZ-JPSHG-JPHG3-6D
  • JP Enterprises Signature Handguard for DPMS LR-308, XXL Length, Black JPHG3-7D , MPN: JPHG3-7D , UPC: 812872021034 , Code: J5-HZ-JPSHG-JPHG3-7D
  • JP Enterprises Signature Handguard for AR-15/M16, XXL Length, Black JPHG3-7M , MPN: JPHG3-7M , UPC: 812872021027 , Code: J5-HZ-JPSHG-JPHG3-7M
  • JP Enterprises Signature Handguard for Armalite/Bushmaster/Rock River AR-10, Extra Long Length, Black JPHG3-6A , MPN: JPHG3-6A , UPC: 812872021072 , Code: J5-HZ-JPSHG-JPHG3-6A
  • JP Enterprises Signature Handguard for Armalite/Bushmaster/Rock River AR-10 type, XXL Length, Black JPHG3-7A , MPN: JPHG3-7A , UPC: 812872021089 , Code: J5-HZ-JPSHG-JPHG3-7A
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