導軌整合系統 (Chinese Wikipedia)

Jacki Billings. The battle between KeyMod and M-LOK. Guns.com. 2017-05-16 [2020-09-19]. （原始内容存档于2020-12-23）（美国英语）.
Max Slowik. Magpul releases modular M-LOK accessory mounting standard. Guns.com. 2014-04-24 [2020-09-19]. （原始内容存档于2022-04-04）（美国英语）.
Max Slowik. New Open-Source KeyMod Universal Mounting System by Vltor. Guns.com. [2020-08-22]. （原始内容存档于2021-01-16）（英语）.

gunsamerica.com

September 21, Max Slowik on. SquareDrop by AAC: KeyMod Compatible Honey Badger Handguards. GunsAmerica Digest. 2016-09-21 [2020-08-21]. （原始内容存档于2020-08-10）（美国英语）.

gunsmagazine.com

Joe Kriz. Heckler & Koch MR762A1 LRP Goes Long. GUNS Magazine. 2020-08-03 [2020-09-19]. （原始内容存档于2020-09-22）（美国英语）.

hk-usa.com

MR556A1. Heckler & Koch. [2020-09-19]. （原始内容存档于2019-10-07）（美国英语）.

hkusa.s3.amazonaws.com

HK USA. HK USA Civilian Catalog (pdf). 2018-03-12 [2020-09-20]. （原始内容存档 (PDF)于2020-09-24）（美国英语）.

ivantactical.com

Understanding Zenitco Basis direct attachment system | IvanTactical Store. Ivan The Bear Store. 2020-01-18 [2023-12-31]. （原始内容存档于2023-10-01）（英语）.

justia.com

trademarks.justia.com

HKEY Trademark of Heckler & Koch GmbH. trademarks.justia.com. [2020-09-19] （英语）.

kitbadger.com

Q-Sert : The Attachment Method. Kit Badger. 2020-03-10 [2020-09-11]. （原始内容存档于2020-12-06）（美国英语）.

luckygunner.com

Chris Baker. KeyMod vs. M-Lok: The Next AR Rail Standard. www.luckygunner.com. 2014-11-19 [2020-08-22]. （原始内容存档于2020-11-11）.

soldiersystems.net

Details On The USSOCOM Sponsored KeyMod vs M-LOK Test Conducted at NSWC-Crane. Soldier Systems Daily. 2017-05-05 [2020-09-19]. （原始内容存档于2021-02-22）（美国英语）.

tacretailer.com

Retailer, Tactical. Rifle Attachment Systems Old and New. Tactical Retailer. 2020-06-04 [2020-09-13]. （原始内容存档于2021-11-28）（英语）.

testequipmentdepot.com

TLR Compatability List (PDF). [2020-08-29]. （原始内容存档 (PDF)于2021-08-31）（美国英语）.

thefirearmblog.com

Steve Johnson. H&K HK243 S SAR and S TAR Semi-Automatic G36 Rifle [LOT Of Exclusive PHOTOS]. The Firearm Blog. 2014-03-11 [2020-09-19]. （原始内容存档于2021-01-05）（美国英语）.
DSEI17 – H&K Unveil Upgrades to British SA80 -. The Firearm Blog. 2017-09-20 [2020-09-19]. （原始内容存档于2019-12-03）（美国英语）.
Steve Johnson. H&K MR556-SD MR762A1-SD with Modular Rail System & OSS Suppressors. The Firearm Blog. 2014-01-07 [2020-09-19]. （原始内容存档于2020-11-02）（美国英语）.
Steve Johnson. Goodbye Picatinny, Hello NATO Accessory Rail. The Firearm Blog. 2009-06-15 [2020-08-22]. （原始内容存档于2020-11-01）（美国英语）.
Steve Johnson. Wilcox rail system with embedded circuts. The Firearm Blog. 2008-10-21 [2020-08-22]. （原始内容存档于2021-01-15）（美国英语）.

thereptilehouseblog.com

Heckler & Koch HKey Overview. The Reptile House Blog. 2018-06-01 [2020-08-21]. （原始内容存档于2021-01-15）（英语）.

web.archive.org

Firearm Accessory Rails: Which is the Best?. Catalyst Arms. 2019-01-12 [2020-09-19]. （原始内容存档于2020-12-09）（美国英语）.
Retailer, Tactical. Rifle Attachment Systems Old and New. Tactical Retailer. 2020-06-04 [2020-09-13]. （原始内容存档于2021-11-28）（英语）.
McCollum, Ian. Almost Adopted: The H&K XM8 Family. Forgotten Weapons. 2018-12-14 [2020-09-13]. （原始内容存档于2020-08-11）（美国英语）.
John Scott. Mod Squad: The Birth of the KeyMod System. Ballistic Magazine. 2015-09-04 [2020-09-20]. （原始内容存档于2020-11-28）（美国英语）.
Jacki Billings. The battle between KeyMod and M-LOK. Guns.com. 2017-05-16 [2020-09-19]. （原始内容存档于2020-12-23）（美国英语）.
Max Slowik. Magpul releases modular M-LOK accessory mounting standard. Guns.com. 2014-04-24 [2020-09-19]. （原始内容存档于2022-04-04）（美国英语）.
Details On The USSOCOM Sponsored KeyMod vs M-LOK Test Conducted at NSWC-Crane. Soldier Systems Daily. 2017-05-05 [2020-09-19]. （原始内容存档于2021-02-22）（美国英语）.
Steve Johnson. H&K HK243 S SAR and S TAR Semi-Automatic G36 Rifle [LOT Of Exclusive PHOTOS]. The Firearm Blog. 2014-03-11 [2020-09-19]. （原始内容存档于2021-01-05）（美国英语）.
DSEI17 – H&K Unveil Upgrades to British SA80 -. The Firearm Blog. 2017-09-20 [2020-09-19]. （原始内容存档于2019-12-03）（美国英语）.
Steve Johnson. H&K MR556-SD MR762A1-SD with Modular Rail System & OSS Suppressors. The Firearm Blog. 2014-01-07 [2020-09-19]. （原始内容存档于2020-11-02）（美国英语）.
Joe Kriz. Heckler & Koch MR762A1 LRP Goes Long. GUNS Magazine. 2020-08-03 [2020-09-19]. （原始内容存档于2020-09-22）（美国英语）.
MR556A1. Heckler & Koch. [2020-09-19]. （原始内容存档于2019-10-07）（美国英语）.
Q-Sert : The Attachment Method. Kit Badger. 2020-03-10 [2020-09-11]. （原始内容存档于2020-12-06）（美国英语）.
Brownells, Inc. Picatinny Rails, Weaver Rails, What’s The Difference?. www.brownells.com. [2020-08-22]. （原始内容存档于2021-02-24）（美国英语）.
Heckler & Koch HKey Overview. The Reptile House Blog. 2018-06-01 [2020-08-21]. （原始内容存档于2021-01-15）（英语）.
Chris Baker. KeyMod vs. M-Lok: The Next AR Rail Standard. www.luckygunner.com. 2014-11-19 [2020-08-22]. （原始内容存档于2020-11-11）.
GLOCK Perfection | GLOCK History. eu.glock.com. [2020-08-29]. （原始内容存档于2021-01-28）.
TLR Compatability List (PDF). [2020-08-29]. （原始内容存档 (PDF)于2021-08-31）（美国英语）.
Steve Johnson. Goodbye Picatinny, Hello NATO Accessory Rail. The Firearm Blog. 2009-06-15 [2020-08-22]. （原始内容存档于2020-11-01）（美国英语）.
Steve Johnson. Wilcox rail system with embedded circuts. The Firearm Blog. 2008-10-21 [2020-08-22]. （原始内容存档于2021-01-15）（美国英语）.
Max Slowik. New Open-Source KeyMod Universal Mounting System by Vltor. Guns.com. [2020-08-22]. （原始内容存档于2021-01-16）（英语）.
September 21, Max Slowik on. SquareDrop by AAC: KeyMod Compatible Honey Badger Handguards. GunsAmerica Digest. 2016-09-21 [2020-08-21]. （原始内容存档于2020-08-10）（美国英语）.
HK USA. HK USA Civilian Catalog (pdf). 2018-03-12 [2020-09-20]. （原始内容存档 (PDF)于2020-09-24）（美国英语）.
Understanding Zenitco Basis direct attachment system | IvanTactical Store. Ivan The Bear Store. 2020-01-18 [2023-12-31]. （原始内容存档于2023-10-01）（英语）.