Black Rifle Arms 300BLK Piston Upper with Aero Precision M-Lok Rail

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Questions and Answers
Product Specifications
Ship Requirements

Black Rifle Arms^® AR-15 10" 300BLK Complete Low Profile Piston Upper with Aero Precision Enhanced 12" M-Lok Handguard

Caution: If using a handguard that extends beyond the barrel a suppressor or blast shield must be used to prevent discharge gasses from blasting through the handguard

300BLK Piston Upper with Aero Precision M-Lok Rail

Q: hI I’m looking at this product and was wondering if you guys could do it with a 15 “ hand guard instead of the 12”

Asked by: Enoch - 12/24/2024

A: Sorry for the delay, this question got overlooked. Yes you can request a 15" for this build, it does add around $30 more as the handguards in that length are more costly.

Answer provided by: Administrator (1/15/2025)

Q: Good afternoon i am looking at the 10” 300BLK low profile piston upper with the AP 12” m-lok rail system. So my question, i have a rugged radiant 762 and need to know if the suppressor will fit inside of the rail system.

Asked by: Taylor Frisby - 8/28/2023

A: Yes your suppressor fits with the handguard with plenty of clearance.

Answer provided by: Administrator (10/21/2023)

Q: What buffer spring and weight do I need for this 300blk? Can a JP Enterprise silent capture spring be used?

Asked by: Anthony Kessler - 2/22/2023

A: H2 buffer and standard carbine spring. You can use a JP Capture Spring if you modify the carrier's polymer buffer to open it up a little to allow the rod from JP to clear it.

Answer provided by: Administrator (2/23/2023)

Q: I'm interested in this upper 10" 300BLK Complete Low Profile Piston Upper with A.P. 12" M-Lok Handguard. My question is, with the suppressor mounted within the hand guard can you still get to the locking collar to turn it to the locked position? Regards

Asked by: Mike - 11/25/2022

A: If you already have a suppressor that utilizes a locking collar we recommend going with the 9" handguard. If you don't have a suppressor and you have to get one there are suppressors that require a locking mechanism you would need to get to and then you can use the longer barrel.

Answer provided by: Black Rifle Arms Sales Team (12/2/2022)

Q: What is the overall length of this receiver.

Asked by: Eric - 9/8/2022

A: The OAL is 19 3/4"

Answer provided by: Administrator (9/9/2022)

Q: Is this a short stroke piston system?

Asked by: Jacob - 4/17/2022

A: Yes it is a short stroke.

Answer provided by: Black Rifle Arms Sales Team (4/25/2022)

Q: What is the inside diameter of the rail? Is it suppressor friendly?

Asked by: Marine66 - 2/10/2019

A: The handguard is 1.72" inside diameter and fits most 1.5" suppressors. Our 300Blk 10" and 16" piston uppers are suppressor friendly, you can shoot subsonic ammunition with or without a suppressor.

Answer provided by: Charles Cassels (2/10/2019)

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10" 300BLK Complete Low Profile Piston Upper with A.P. 12" M-Lok Handguard

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Q: hI I’m looking at this product and was wondering if you guys could do it with a 15 “ hand guard instead of the 12”

Q: Good afternoon i am looking at the 10” 300BLK low profile piston upper with the AP 12” m-lok rail system. So my question, i have a rugged radiant 762 and need to know if the suppressor will fit inside of the rail system.

Q: What buffer spring and weight do I need for this 300blk? Can a JP Enterprise silent capture spring be used?

Q: I'm interested in this upper 10" 300BLK Complete Low Profile Piston Upper with A.P. 12" M-Lok Handguard. My question is, with the suppressor mounted within the hand guard can you still get to the locking collar to turn it to the locked position? Regards

Q: What is the overall length of this receiver.

Q: Is this a short stroke piston system?

Q: What is the inside diameter of the rail? Is it suppressor friendly?

Related Items

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CHECKOUT MINIMUM

TIME TO FULFILL ORDERS

AVERAGE SHIPPING TRANSIT TIMES NOT INCLUDING HOLIDAYS

10" 300BLK Complete Low Profile Piston Upper with A.P. 12" M-Lok Handguard

Choose Options

Q: hI I’m looking at this product and was wondering if you guys could do it with a 15 “ hand guard instead of the 12”

Q: Good afternoon i am looking at the 10” 300BLK low profile piston upper with the AP 12” m-lok rail system. So my question, i have a rugged radiant 762 and need to know if the suppressor will fit inside of the rail system.

Q: What buffer spring and weight do I need for this 300blk? Can a JP Enterprise silent capture spring be used?

Q: I'm interested in this upper 10" 300BLK Complete Low Profile Piston Upper with A.P. 12" M-Lok Handguard. My question is, with the suppressor mounted within the hand guard can you still get to the locking collar to turn it to the locked position? Regards

Q: What is the overall length of this receiver.

Q: Is this a short stroke piston system?

Q: What is the inside diameter of the rail? Is it suppressor friendly?

Related Items

Recently Viewed Items

AVERAGE SHIPPING TRANSIT TIMES
NOT INCLUDING HOLIDAYS