Tiger Rock 16" 5.56 NATO 1:8 Carbine Length M4 Complete Upper - 15" M-LOK Rail
This Complete Upper Receiver includes a 16” 4140 steel barrel, heat treated and stress relieved, with a parkerized finish. Chambered in .223 Wylde, which can take advantage of both .223 Remington and higher pressure 5.56 NATO ammunition. The 7075-T6 aluminum upper receiver creates a monolithic Picatinny rail with the lightweight M-LOK handguard. Includes extended latch charging handle, M16 cut bolt carrier group, and Tiger Rock Pineapple Muzzle Brake.
- Chambered in .223 Wylde with 1:8 twist rate
- 16" 4140 gun quality steel barrel with a parkerized finish
- Carbine length gas system
- 1/2x28 Pineapple Muzzle Brake
- 15" M-LOK Super Slim Handguard
- MIL-SPEC bolt carrier group
- Extended latch charging handle
Ratings & Reviews
Bad bolt carrier group
by Colton -
First off, they sent me this product but with the KetMod rail. I went through the return process and they exchanged it for the correct product with the M-LOK rail. I took it out to shoot and the upper was bone dry so I oiled it up. It would shoot one round and failed to extract the casing. The bcg would barely even budge when firing. I put the bcg into a friend’s rifle and the exact same problem was happening. I do not want to mess with buying another bcg so just going to send it back, get my money, and take my business elsewhere.
Nice and Tight....
by Steve W -
Very impressed on how it fitted on my Spike Tactical lower, oiled very good went to range, changed muzzle and cited it in at 100 yards and did very good, it kept a nice tight pattern and I shot a little over 300 rounds of 5.56 and .223 with no issue. It is well constructed, it feels good and shoots good.