Phase 5 Weapon Systems Lo-Pro Slope Nose Free Float AR-15 Handguard - M-LOK - 4 Lengths Available
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- 90-day no-hassle returns policy
- Backed by the Phase 5 Warranty! what it covers
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Product description
Achieve Great Looks & Improved Functionality with Phase 5’s Lightweight LPSN Free-Float Handguard
The Phase 5 Weapon Systems LPSN (Lo-Pro Slope Nose) M-LOK Handguard is the perfect choice to upgrade your next AR-15 build adding great looks and functionality for your rail at a significantly reduced weight. It is designed to accommodate beneficial features and improvements that most AR-15 builders have requested and demanded.
The LPSN features Phase 5’s True-fit™ technology that utilizes a secure attachment of the handguard onto the barrel nut with an accurate and solid full contact method around the entire surface area. This secure attachment system allows for the repeated removal and re-installation of the rail without any hassle.
True-fit™ Technology plus M-LOK Attachment system
The Phase 5 Weapon Systems LPSN (Lo-Pro Slope Nose) M-LOK Handguard undergoes a rigorous extra de-burring process in order to ensure a smoother snag-free finish. The M-LOK attachment system also allows shooters to mount accessories exactly where they want them without the need for full-length Picatinny rails that end up not being used.
The slender lightweight design, longer nose, ease of installation, and superior construction make this handguard the perfect choice for your next AR-15 rifle build.
Features:
- M-LOK attachment slots
- Extended Picatinny top rail
- De-burred edges
- Lightening cuts
- True Fit barrel nut
- Includes mounting hardware
- Built-in QD mounts with internal stops
Specifications:
- Accessories: Steel barrel nut and mounting hardware included
- Color: Black
- Model: Lo-Pro Slope Nose
- Attachment: M-LOK
- Size: Available in 7.5″, 10.5″ , 13″, and 15″
All 4 options on this page
- Phase 5 Weapon Systems Lo-Pro Slope Nose Free Float AR-15 Handguard - M-LOK - 4 Lengths Available - Length: 7.5 inch SKU LPSN75MLOK · UPC 813318022752
- Phase 5 Weapon Systems Lo-Pro Slope Nose Free Float AR-15 Handguard - M-LOK - 4 Lengths Available - Length: 10.5 inch SKU LPSN10.5 MLOK · UPC 813318024787
- Phase 5 Weapon Systems Lo-Pro Slope Nose Free Float AR-15 Handguard - M-LOK - 4 Lengths Available - Length: 13 Inch SKU LPSN13 MLOK · UPC 813318024992
- Phase 5 Weapon Systems Lo-Pro Slope Nose Free Float AR-15 Handguard - M-LOK - 4 Lengths Available - Length: 15 Inch SKU LPSN15MLOK · UPC 813318022066
Customer reviews 5
Verified buyerSo now the negative, Phase 5 rail color is more purple/heated black than black (magpul BAD levers are also more purplish), like not even close to other Parkerized or matte finishes. If you plan on refinishing your whole setup then no big deal, otherwise you'll see the contrasting colors.
AT3 Tactical · Thanks for sharing your feedback! We're glad you're satisfied with your purchase.
AT3 Tactical · Thanks for sharing your feedback! We're glad you're satisfied with your purchase.
Questions & Answers 3
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Is it possible to get a replacement barrel nut for a lo-pro slope nose free float AR-15 handguard………item # LPSN13 MLOK ? Thank you for your help !!!!
Todd · Jul 7, 2026AT3 Support Team — Yes, please reach out to us. Also, Phase 5 sells the replacement steel barrel nut (which includes the 6 necessary mounting screws).
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Will this hand guard clear all low profile gas blocks
Todd · May 10, 2026AT3 Support Team — No, it clears most standard low-profile gas blocks (1.350" ID), but verify your specific model—no pigtail gas tubes.
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Will this phase 5 slight slant 10.5 inch handguard work on a 10.5 inch barrel?
Alex Navarro · Jan 20, 2026AT3 Support Team — Yes, the Phase 5 Weapon Systems 10.5" Lo-Pro Slope Nose Free Float AR-15 Handguard is perfectly compatible with a 10.5" barrel, providing full coverage up to the gas block with its slope-nose design. It uses Phase 5's True-fit™ system for a secure fit on standard mil-spec barrel nuts without modifications
Warranty & returns
Backed by the Phase 5 Warranty!
Phase 5 Warranty
All parts should be installed by a licensed, experienced GUNSMITH. You must consider the importance of every aspect involved with a proper installation. Improperly installed components can cause malfunctions, weapon failures, serious injury, or even death. PHASE 5™ WILL NOT WARRANTY COMPONENTS DAMAGED BY CUSTOMERS DURING INSTALLATION. All Phase 5 WSI assemblies and components have a lifetime warranty against any manufacturing defects.
Warranty Issues: email tech@phase5wsi.com with the details of the issue you are experiencing. Please include your name and contact information.
Return & Exchange Policy
You must contact us within 30 days from the date of purchase for any returns or exchanges. Email Returns@phase5wsi.com to request a Return Merchandise Authorization Form. Please include your name, contact information, and order number. All returns and exchanges must be in original condition. Any product returned DAMAGED/USED is subject to a 20% refurbishing fee. We do not accept returns or exchanges for apparel. The customer is liable for all shipping charges on non-defective items.
Disclaimer: Manufacturer’s warranty is subject to change without prior notice.
90-day no-hassle returns
The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.
If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.
