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Questions & Answers
Will the 13" work on a M&P 15 Sport 2 (16" carbine length barrel)? Expert Answer

The STNGR RPTR AR15/M4 M-Lok Free Float Handguard will be compatible with your M&P-15 but you will need to remove your delta ring, handguard cap, and fixed front sight or railed gas block if you have one. You would then need to purchase and install a low-profile gas block.

by Ethan, Gear Expert, November 22, 2022
will this handguard fit a Gibbz Arms side charging upper receiver for a 9mm AR pistol? Expert Answer

The STNGR RPTR M-Lok Free Float Handguard for AR15/M4 will not fit billet upper receivers without modification. The Gibbz Arms Side Charging Handle 9mm upper is also not compatible with handguards that have anti rotation tabs unless they are removed.

by Hunter, Gear Expert, June 22, 2022
Customer Reviews
Helpful Positive Review Nice Lightweight Handguard by Donny W., October 4, 2022
I used this as an upgrade to my M&P 15 when converting to a free float handguard. I love the lightweight design- there are lots of cuts all over including in the picatinny rail on top. It also has a nice line up notch (anti-rotation tabs) that kee...
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1/1 found this helpful
Helpful Positive Review Very Nice! by Cuda-340, November 21, 2021
This is my second handguard from STNGR and I love it as much as the first. Well made, easy to install, clean edges and functional. I would recommend this to anyone looking for an upgraded handguard on their AR.
1/1 found this helpful
Most Recent Reviews STNGR HANDGUARD by PG, Verified Owner, November 21, 2024
Light weight, amazing quality and nice design and easy to install
Most Recent Reviews Very Awkwad For 8 Inch by agilmore01, Verified Owner, May 1, 2024
This review is for the 8" handguard only. Couldn't really tell how the handguard was built by the pics. When I got it, it has the bump outs for the pic rail pieces and QD attachments. These would be ok on a 15" handguard, ...
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Most Recent Reviews Must Have Upgrade! by BullDawg, November 10, 2022
100% satisfied! Measurement’s were accurate as advertise, build quality A+. All hardware and tool come with, high quality at a bargain price. A beast of a handguard. I’m a huge fan of STNGR products now. I initially bought another brand handguard-(no...
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Most Recent Reviews For my 300blk build by Patrick Hamilton, July 27, 2022
This handguard was perfect for my 10” 300blk barrel. There is about a quarter inch between the handguard and the back of my suppressor some people like this space to be tighter but this allows me to use a qd mount as there is reward travel before you...
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Read All 7 Reviews
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Product Info for STNGR RPTR AR15/M4 M-Lok Free Float Handguard

Based on 5-star reviews alone, no other handguard comes close. But reviews don't tell the whole story. Made with a rugged design, rock solid locking mechanism and incredibly simple installation, there's a reason why STNGR handguards are regularly trusted by Police, SWAT, competition shooters, shooting instructors, home defenders and tens-of-thousands of STNGR customers.image

Specifications for STNGR RPTR AR15/M4 M-Lok Free Float Handguard:

Manufacturer: STNGR
Fabric/Material: 6061-T6 Aluminum
Gun Make: AR Platform
Gun Model: AR-15
Gun Type: Rifle
Handguard Type: Free-Float
Gun Rail: M-LOK
Gas System Length: Carbine Length
Condition: New
Inner Diameter: 1.35 in
Quantity: 1

Features of STNGR RPTR AR15/M4 M-Lok Free Float Handguard

  • Incredibly simple installation. The RPTR, with its simple non-timing barrel nut, was engineered to be the easiest handguard to install on the market. Perfect for first time builders and seasoned gunsmiths alike. No hassle, no frustration, no previous experience required. Simple.
  • Locking anti-slide plate. The RPTR solves a problem that plagues most rails on the market - handguard sliding. With their proprietary anti-slide plate that interfaces with a groove in the barrel nut, the RPTR is locked to the upper - ensuring that it won't go anywhere.
  • Anti-rotation tabs. Forward sliding is a problem that's solved with the anti-slide plate, but what about lateral rotation? The RPTR has built in anti-rotation tabs to prevent any kind of rotation. By combining the anti-slide plate and anti-rotation tabs, the result is a rock solid fit - no matter how hard you run it.
  • Lightweight, increased ventilation. Aggressive machining cuts throughout the rail serve 3 critical functions: 1) Significantly slash excess weight 2) Increase ventilation to cool both your handguard and barrel 3) Steep angles prevent fingers from sliding into grooves.

Package Contents:

  • STNGR RPTR AR15/M4 M-Lok Free Float Handguard
  • Standard

STNGR RPTR AR15/M4 M-Lok Free Float Handguard Orderable Models

List of Orderable Models

STNGR RPTR M-Lok Free Float Handguard for AR15/M4, Anodized Black, 8.25in, 8RM , MPN: 8RM , UPC: 850032161046 , Code: 4MB-HZ-STNGR15-8RM
STNGR RPTR M-Lok Free Float Handguard for AR15/M4, Anodized Black, 13.5in, 13RM , MPN: 13RM , UPC: 850032161022 , Code: 4MB-HZ-STNGR15-13RM
STNGR RPTR M-Lok Free Float Handguard for AR15/M4, Anodized Black, 15in, 15RM , MPN: 15RM , UPC: 850032161015 , Code: 4MB-HZ-STNGR15-15RM
STNGR RPTR M-Lok Free Float Handguard for AR15/M4, Anodized Black, 10in, 10RM , MPN: 10RM , UPC: 850032161039 , Code: 4MB-HZ-STNGR15-10RM
STNGR RPTR M-Lok Free Float Handguard, AR15/M4, 15in, Cerakote, Magpul FDE, 15RM-FDE , MPN: 15RM-FDE , UPC: 850032161398 , Code: 4MB-HZ-STNGR15-15RM-FDE

STNGR RPTR AR15/M4 M-Lok Free Float Handguard Unavailable & Discontinued Models

List of Unorderable Models

USED STNGR RPTR M-Lok Free Float Handguard for AR15/M4, Anodized Black, 15in, 15RM, EDEMO1, Used, Condition Fair , MPN: 15RM-EDEMO1 , Code: 4MB-HZ-STNGR15-15RM-EDEMO1
USED STNGR RPTR M-Lok Free Float Handguard for AR15/M4, Anodized Black, 15in, 15RM, EDEMO2, Used, Condition Fair , MPN: 15RM-EDEMO2 , Code: 4MB-HZ-STNGR15-15RM-EDEMO2
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