M4A1 Block I
![](https://cdn11.bigcommerce.com/s-70fo0g802l/product_images/uploaded_images/m4a1-block-i.jpg)
PARTS LIST
Lower Receiver
Lower Receiver: Colt A2 profile Lower w/ UID Label
Stocks: LMT Sopmod Gen 1 Black/FDE, Colt CAR, Colt Waffle (Various Others)
Grip: Standard A2, Ergo (Various Others)
Trigger: Colt, Geissele SSA/SSA-E
Trigger Guard: GI
Rear Sling Mount: CQD
Upper Receiver
Upper Receiver: Colt AF/Keyhole/Square
Barrel: Colt 14.5” FSP Socom Profile
Gas Block: Colt FSP
Muzzle Device: Knights Armament NT4 Flash Hider
Hand Guard: Knights Armament RAS
Bolt Carrier Group: Colt
Charging Handle: Standard GI, PRI Gas Buster Military Latch
Rear Sight: Matech, Knights Armament
Front Sight: Colt FSP
Optic: Aimpoint CompM2 w/ Wilcox/Aimpoint GI Mount, Aimpoint CompM4/M4s, Trjicon TA01NSN ACOG, Eotech 553/SU-231, Eotech EXPS3-0/SU-231a, Elcan SpecterDR 1-4/SU-230 FDE w/ L3 MRDS/Docter, Eotech G33 Anodized
Light: Surefire m951 “Fat Body”, Surefire M-Series (Various), Insight M3X FDE, Insight WMX200 Bronze Rotational/Fixed, Surefire Scout (Various)
Laser: Peq2a, Peq15/Atpial C, LA5, Peq16a/b
Suppressor: Knights NT4 Taupe/Black
Front Sling Mount: CQD
Foregrips: Knights Armament, Tango Down Fullsize, GripPod, (Various Others)
REFERENCE
![](https://cdn11.bigcommerce.com/s-70fo0g802l/product_images/uploaded_images/-geronimo-paratroopers-squad-live-fire-130531-f-lx370-133.jpg)
![](https://cdn11.bigcommerce.com/s-70fo0g802l/product_images/uploaded_images/8d8fda58b488da7fb3ef630f8e5d3d97.jpg)
![](https://cdn11.bigcommerce.com/s-70fo0g802l/product_images/uploaded_images/659px-us-solder-m4-guns-38803715-659-599.jpg)
![](https://cdn11.bigcommerce.com/s-70fo0g802l/product_images/uploaded_images/765432g.jpeg)
![](https://cdn11.bigcommerce.com/s-70fo0g802l/product_images/uploaded_images/12615761-1283339011682391-2079804485100042571-o.jpg)
![](https://cdn11.bigcommerce.com/s-70fo0g802l/product_images/uploaded_images/15316510807-64584776ed-o.jpg)
![](https://cdn11.bigcommerce.com/s-70fo0g802l/product_images/uploaded_images/army-ranger-photo-hr.jpg)
![](https://cdn11.bigcommerce.com/s-70fo0g802l/product_images/uploaded_images/casing.jpg)
![](https://cdn11.bigcommerce.com/s-70fo0g802l/product_images/uploaded_images/download-1-.jpeg)
![](https://cdn11.bigcommerce.com/s-70fo0g802l/product_images/uploaded_images/download.jpeg)
![](https://cdn11.bigcommerce.com/s-70fo0g802l/product_images/uploaded_images/hires-140126-a-ao884-065a.jpg)
![](https://cdn11.bigcommerce.com/s-70fo0g802l/product_images/uploaded_images/msob-photo-hires.jpg)
![](https://cdn11.bigcommerce.com/s-70fo0g802l/product_images/uploaded_images/marsoc-marine-hr.jpg)
![](https://cdn11.bigcommerce.com/s-70fo0g802l/product_images/uploaded_images/ranger-sopmod-hr.jpg)
![](https://cdn11.bigcommerce.com/s-70fo0g802l/product_images/uploaded_images/sf-medics-hr.jpg)