+1-800-504-5897 Help Center Check Order Status
About Us Policies Reviews How To
Free Shipping & Free Returns*

FREE SHIPPING on Over 250,000 Products

Enjoy free shipping during the holidays! Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC and to all U.S. Military APO/FPO/DPO addresses.

Enjoy Our Extended FREE RETURNS

We want to ensure that making a return is as easy as possible! With our Hassle-Free, Extended Holiday Returns, eligible orders placed from November 12, 2025 on will benefit from an extended return deadline (January 13, 2026 or 30 days after receipt of your order - whichever is later). We'll even cover the cost of return shipping. Learn more about our Return Policy.

  • Entire Store
  • ...
  • Apparel & Footwear
  • Astronomy
  • Everything Else
  • Eyewear
  • Hunting Gear
  • Lab Equipment
  • Military Gear
  • Outdoor Gear
  • Photography Equipment
  • Police, EMS & Fire
  • Shooting
  • Sport Optics
  • Sports & Hobbies
TIP
Shopping Cart

GUNTEC USA AR-15 5/8 Extended Riser Mount EXTRISER

GUNTEC USA AR15 5/8 Extended Riser Mount EXTRISER
GUNTEC USA AR15 5/8 Extended Riser Mount EXTRISER
1 of 1 images
GUNTEC USA AR15 5/8 Extended Riser Mount EXTRISER

Tap Tap to Zoom

Questions & Answers
Customer Reviews
Helpful Positive Review
Great product by Paul, September 23, 2016
Only having rail on my upper this product extended rail over guard ring. Allowed for red dot and magnifier. Fit was flawless and quality was excellent. Shipping was fast. Very impressed with optics planet.
1/1 found this helpful
Most Recent Reviews
Needed extra long bar for night vision by Robert East, December 12, 2016
The rail on my Taccom AR-15 4" barrel .22 long rifle was way to short for the Armasight clip on night vision to mount-Customer service Lady was very helpful about finding the right mount to work-Everything went on just right!
Read All 2 Reviews

Product Discontinued by Manufacturer

GUNTEC USA AR-15 5/8 Extended Riser Mount has been discontinued by Guntec USA and is no longer available. Our product experts have helped us select these available replacements below.You can also explore other items in the Weapon Accessories, Gun Parts, Picatinny Rail Sections yourself to try and find the perfect replacement for you!

Product Info for GUNTEC USA AR-15 5/8 Extended Riser Mount

T6 Aluminum Steel QD Knobs 5/8" Riser Fits Flattop Receiver Or Any Picatinny/Weaver Rail Extended Length Allows Rail To Cover Delta Ring And Add More Rail Lengthimage

Package Contents:

  • GUNTEC USA AR-15 5/8 Extended Riser Mount

Related Products to GUNTEC USA AR-15 5/8 Extended Riser Mount

Image of Guntec USA AR 300 Blackout Muzzle Comp w/m QD Blast Shield Guntec USA AR 300 Blackout Muzzle Comp w/m QD Blast Shield (3) List: $149.95 (Save $3.96) $145.99
Image of Guntec USA AR 9mm Cal CAR Buffer and Spring Set Guntec USA AR 9mm Cal CAR Buffer and Spring Set (12) List: $49.95 (Save 18%) $40.89 Best Rated
Image of Guntec USA AR-15 M-LOK Ultimate Rifle Kit 9 models Guntec USA AR-15 M-LOK Ultimate Rifle Kit As Low As (Save Up to 31%) $479.99 On Sale
Image of Guntec USA AR-15 Accent Kit 13 models Guntec USA AR-15 Accent Kit (3) As Low As (Save Up to 31%) $181.99 On Sale
Image of Guntec USA AR-15 Ultimate Pistol Kit 11 models Guntec USA AR-15 Ultimate Pistol Kit (1) As Low As (Save Up to 35%) $389.99 On Sale
Image of Guntec USA AR-15 Complete Anti-Rotation Trigger/Hammer Pin Set 17 models Guntec USA AR-15 Complete Anti-Rotation Trigger/Hammer Pin Set (59) As Low As (Save Up to 51%) $16.96 Best Rated
Image of Guntec USA AR-15 Bolt Carrier Group Mil-Spec BCG 4 models Guntec USA AR-15 Bolt Carrier Group Mil-Spec BCG (2) As Low As (Save Up to 20%) $215.99
Image of Guntec USA AR-15 Enhanced Lower Parts Kit w/ Upgrades 8 models Guntec USA AR-15 Enhanced Lower Parts Kit w/ Upgrades (5) As Low As (Save Up to 12%) $147.99
Image of Guntec USA AIR-LOK Series AR-15 M-LOK Compression Free Floating Handguard 93 models Guntec USA AIR-LOK Series AR-15 M-LOK Compression Free Floating Handguard (1) As Low As (Save Up to 50%) $64.39 On Sale
Image of Guntec USA Trump Series Limited Edition AR-15 Pistol Furniture Set w/Brace Guntec USA Trump Series Limited Edition AR-15 Pistol Furniture Set w/Brace (1) List: $399.95 (Save 10%) $359.99
Image of Guntec USA AR-15 Builders Kit w/ Ambidextrous Safety 15 models Guntec USA AR-15 Builders Kit w/ Ambidextrous Safety (12) As Low As (Save Up to 19%) $82.08
Image of Guntec USA AR-15 Trump Series Limited Edition Furniture Set 2 models Guntec USA AR-15 Trump Series Limited Edition Furniture Set As Low As (Save Up to 37%) $239.99 On Sale
Image of Guntec USA AR-308 Gen 2 Air-Lok Series M-LOK Compression Free Floating Handguard w/ Monolithic Top Rail 12 models Guntec USA AR-308 Gen 2 Air-Lok Series M-LOK Compression Free Floating Handguard w/ Monolithic Top Rail As Low As (Save Up to 40%) $107.99 On Sale
Image of Guntec USA AR Hellfire Gen 2 Muzzle Compensator Guntec USA AR Hellfire Gen 2 Muzzle Compensator (1) List: $119.95 (Save 33%) $79.99
Image of Guntec USA AR Hellfire Gen 2 Muzzle Compensator Guntec USA AR Hellfire Gen 2 Muzzle Compensator (1) List: $119.95 (Save 33%) $79.99
Image of Guntec USA .50 Beowulf Cal Multi Port Steel Compensator Guntec USA .50 Beowulf Cal Multi Port Steel Compensator (3) List: $89.00 (Save $7.01) $81.99
Image of Guntec USA .50 Beowulf Cal Multi Port Steel Compensator Guntec USA .50 Beowulf Cal Multi Port Steel Compensator (3) List: $89.00 (Save $7.01) $81.99
Image of Guntec USA AR-15 Stripped Billet Upper Receiver 12 models Guntec USA AR-15 Stripped Billet Upper Receiver (11) As Low As (Save Up to 40%) $95.99 Blazin' Deal
Image of Guntec USA .308 Caliber Ultra Lightweight Thin M-LOK System Free Floating Handguard w/Monolithic Top Rail 24 models Guntec USA .308 Caliber Ultra Lightweight Thin M-LOK System Free Floating Handguard w/Monolithic Top Rail (24) As Low As (Save Up to 31%) $80.11 On Sale
Image of Guntec USA AR 300 Blackout Muzzle Comp w/Qd Blast Shield Guntec USA AR 300 Blackout Muzzle Comp w/Qd Blast Shield List: $159.95 (Save 19%) $129.99 Blazin' Deal
Image of Guntec USA AR .308 Honeycomb Series Gen 2 Complete Furniture Set 10 models Guntec USA AR .308 Honeycomb Series Gen 2 Complete Furniture Set As Low As (Save Up to 36%) $209.99 On Sale
Image of Guntec USA AR-15 5.5'' Fake Suppressor 2 models Guntec USA AR-15 5.5'' Fake Suppressor As Low As (Save Up to 24%) $47.99 Final Sale
Image of Guntec USA AR-15 Reverse Thread Slip Over Fake Suppressor 5 models Guntec USA AR-15 Reverse Thread Slip Over Fake Suppressor (55) As Low As (Save Up to $4.50) $42.89 Best Rated
Image of Guntec USA AR 9mm Slip Over Barrel Shroud w/Multi Port Muzzle Brake Guntec USA AR 9mm Slip Over Barrel Shroud w/Multi Port Muzzle Brake (6) List: $59.95 (Save 10%) $53.99

GUNTEC USA AR-15 5/8 Extended Riser Mount Unavailable & Discontinued Models

List of Unorderable Models

  • GUNTEC USA AR15 5/8 Extended Riser Mount EXTRISER , MPN: EXTRISER , Code: 2AH-T8-EXTRISER
Compare (0)
1 item has been added
Add at least two items to compare