Black Rifle Arms .308 L.P.R. 12.5" Carbine Piston Upper with A.P. M-Lok Handguard, 4 Position Gas Regulated Piston Upper

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Black Rifle Arms^® L.P.R. .308 12.5" Piston Upper with Aero Precision M-Lok Handguard

Black Rifle Arms, .308 Piston Upper, SBR .308 Upper

Q: Will there be more ?

Asked by: Will Mast - 7/20/2021

A: Yes, but we have had to focus all our time on the AR15 platforms as that is were demand is.

Answer provided by: Administrator (9/26/2021)

Q: I know that 2020 has been an incredibly tough year for companies with disrupted supply lines. Will you be building more of the .308 L.P.R. 12.5" Piston uppers in 2021? I could send any required parts, except for the barrel, piston kit and bolt carrier if that would help cover any parts shortages.

Asked by: William Mercer - 12/26/2020

A: 2020 has been rough in supply chain. We will be manufacturing .308 again in 2021.

Answer provided by: Administrator (12/30/2020)

Q: Hi, when will you offer these ( 308 L.P.R. 12.5" Piston Upper with A.P. M-Lok Handguard ) again ?

Asked by: Will Mast - 8/26/2020

A: Due to all the backlog in manufacturing due to the unprecedented increase in all firearms and components , we have no eta. Sorry

Answer provided by: Charles B. (9/3/2020)

Q: Hello, I have just a couple questions about the parts you use for the upper build. I see your using aero precision parts, but is this 308 upper using a M5E1 or the M5E1 enhanced? Or more importantly does this require a dpms gen 1 or dpms gen 2 lower? Plus what barrel is being used? Thank you.

Asked by: Paul - 4/27/2020

A: We do our builds with Aero Precision .308 M5 upper. Their .308 M5E1 has their integrated barrel nut which is not compatible with piston setup. Our .308 piston uppers are DPMS Large Frame (gen1) which requires a DPMS large frame Lower (gen1).

Answer provided by: Administrator (4/28/2020)

Q: If I provide my own aero precision upper receiver, what is the turn around for getting the piston kit installed? And does it matter if the upper is cerakoted or not?

Asked by: Julian J Delgado Jr - 11/22/2019

A: We do not offer a piston conversion for the .308/AR-10/7.62x51 rifles. Our upper receivers for this caliber get additional machining specifically for our .308 piston system; therefore, other off the shelf upper receivers are not compatible. https://www.blackriflearms.com/FAQ_ep_55.html

Answer provided by: Administrator (11/23/2019)

Q: I'm interested in your 308 carbine piston kit if you have one? I'm considering shorting my 12.5 ba barrel to 10.5 for a tighter entry weapon that will be suppressed. dwell time will be shorter but I dont see this being a problem with a 308. thank you Mike R

Asked by: Mike - 10/24/2019

A: Hi Mike, we do not offer a piston conversion for the .308/AR-10/7.62x51 rifles. Our upper receivers for this caliber get additional machining specifically for our .308 piston system; therefore, other manufacturer's uppers are not compatible.

Answer provided by: Administrator (10/24/2019)

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.308 L.P.R. 12.5" Piston Upper with A.P. M-Lok Handguard

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